Answered: What is the minimum coefficient of…

Science

Physics

What is the minimum coefficient of friction needed for a frightened driver to take the same curve at 25.0 km/h?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter7: Gravity

Section: Chapter Questions

Problem 31PQ

See similar textbooks

Related questions

Q: You (m = 50 kg) are in a rollercoaster travelling at a constant speed of 50 mph when it goes over a…

Q: (a) What is the radius of a bobsled turn banked at 75° and taken at 33 m/s, assuming it is ideally…

A: For an ideally banked curve, the possible safe velocity is given by, v=rgtanθv2=rgtanθr=v2gtanθ

Q: Consider a banked wet curved roadway, where there is a coefficient of static friction of 0.30 and a…

A: The friction and banking are two necessary arrangements to prevent sliding down or sliding up of the…

Q: A 1000 kg car moving at 7.0 m/s tries to round a corner in a circular arc of radius 9.0 m. The…

Q: (a) Find the angular speed w at which it is spinning. (b) Find the centripetal acceleration, ac with…

A: (a) The relation between angular velocity and frequency is:

Q: R The figure above is taken from one of the Webassign HW problems which shows a person held up…

Q: An automobile of mass m = 1600 kg moves around a flat, circular track of radius R = 130 m at…

A: When the automobile moves in a curved path , it require a centripetal force acting towards the…

Q: A circular curve of highway is designed for traffic moving at 40 mi/h. (a) If the radius of the…

Q: f a curve with a radius of 128 m is properly banked for a car traveling 62 km/h what must be the…

A: The radius of the curve is 128 m. The speed of the car is 62 km/h. To determine: The coefficient…

Q: A) how large must the coefficient of static friction be between the tires and the road if a car is…

A: (A)Write the expression for the centripetal force acting on the car. Write the expression for the…

Q: 10. Consider a banked wet curved roadway, where there is a coefficient of static friction of 0.30…

Q: (a) Calculate the centripetal force exerted on a 900 kg car that negotiates a 500 m radius curve at…

Q: (a) Calculate the centripetal force exerted on a 900.0-kg car that negotiates a 500.0-m radius curve…

Q: As you are riding in a 1650-kg car, you approach a N7M.8 hairpin curve in the road whose radius is…

Q: A 600-kg car traveling at 24.5 m/s is going around a curve having a radius of 120 m that is banked…

A: Mass of car (m) = 600 kg Speed of car (v) = 24.5 msRadius of curve (r) = 120 m Banking angle (θ) =…

Q: A curve of radius 180 m is being designed in a new highway to allow cars travelling at 70 km/hr to…

Q: You are sitting on the edge of a horizontal disk (for example, a playground merry-go-round) that has…

A: m=Mass of personr=Radius of merry-go-round=3 mμ=Coefficient of static friction between the person…

Q: A 1000kg car goes round a smooth circular bend of radius 75m that is banked at 30°(a) what is the…

Q: The pilot of an airplane executes a constantspeed loop-the-loop maneuver in a vertical circle as in…

Q: A curve of radius 1.80x102 m is being designed in a new highway to allow cars travelling at 70.0…

Q: a) Find the centripetal acceleration of a vehicle through a radiused corner given that the radius of…

Q: n an attempt to make a curve in a road safer, the radius of curvature of the section of horizontal…

A: Let initial radius be r Hence, the final radius is 2r We also have initial speed limit v1 as 40 km/h…

Q: A circular curve of highway is designed for traffic moving at 75 km/h. Assume the traffic consists…

Q: (a) What linear speed must an Earth satellite have to be in a circular orbit at an altitude of 157…

Q: A 52 kg stunt pilot who has been diving her airplane vertically pulls out of the dive by changing…

A: Given data Mass of the pilot, mp=52 kg Centripetal acceleration, a=4.1g Velocity of the pilot,…

Q: A curve of radius 1.80x10^2m is being designed in a new highway to allow cars travelling at 70.0…

Q: A coin placed 30.0cm from the center of a rotating, horizontal turntable slips when its speed is…

A: Given Radius r=0.3m Speed v=0.5m/s

Q: A Snowbird pilot (mass 55.0 kg) is completing a circular arc during an air show. At the top of the…

A: Given, mass of the snowbird pilot, m = 55.0 kg At the top of the the arc gravity is, a = 2g = 19.6…

Q: A 100 kg man on a Typhoon ride with a 2.4 m radius realizes he is moving at 6.3 m/s when the floor…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: S A curve with radius of 70 meters is banked with an angle of 20. What is the ideal speed for which…

Q: (a) What linear speed must an Earth satellite have to be in a circular orbit at an altitude of 182…

A: Hsjeh

Q: r weighing 10.9 kN and traveling at 13.6 m/s without negative lift attempts to round an unbanked…

Q: A 50.0-kg child stands at the rim of a merry-go-round ofradius 2.00 m, rotating with an angular…

A: a).The formula for the centripetal acceleration of the child is,

Q: (a) If the coefficient of static friction between the tires and the road is µs, derive an expression…

Q: A bug has a mass of 3 g and is rotating around a compact disk. Its velocity is 1.2 m/s. If the cd…

A: Given data: Mass of the bug is, m= 3 gm = 3×10-3 kg Velocity of the bug is, v = 1.2 m/s the…

Q: Pls help ASAP.

A: Solution:- 1) At circular turns, friction is not always reliable if speed is high. To avoid this…

Q: Racing on a flat track, a car going 32 m/s rounds a curve 56 m in radius. a. What is the car's…

A: Given Velocity = 32 m/s Radius = 56 m (a) We know the expression for Centripetal acceleration is Ac…

Q: The pilot of an airplane executes a loop-the-loop maneuver in a vertical circle. The speed of the…

A: (a) Pilot’s apparent weight at the lowest point,

Q: A small car with mass of 0.800 kg travels at a constant speed on the inside of a track that is a…

A: Mass of the car is M = 0.800 kg Radius of vertical circle is R = 5 m Normal force at bottom is Fn…

Q: (4). (a) A 1,050 kg car makes a circular turn of radius 15m on a flat concrete road, if the speed is…

A: SOlution: As given that a). m = 1050 kg r = 15 m v = 8 m/s to find the firction require b). v = 10…

Q: A 50.0-kg child stands at the rim of a merry-go-round of radius 2.85 m, rotating with an angular…

A: Given:Mass,m=50 kgRadius,r=2.85 mAngular Speed,ω=3.25 rad/s Now,(a) What is the child's centripetal…

Q: A truck with mass 215 slugs rounds a curve of radius 53.0 ft with speed of 62.5 ft/s. (a) What…

A: Given: The mass of the truck is M=25 slugs. The radius is R=53 ft. The speed of the truck is V=62.5…

Q: n engineer must design a curved exit ramp for a highway in such a way that a car, exiting at the…

Q: A 3kg object is being rotated by a string in a vertical circular motion of radius 1.6m. (a) If a…

Concept explainers

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.

Question

f a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads). (a) Calculate the ideal speed to take a 80 m radius curve banked at 15.0∘15.0∘. (b) What is the minimum coefficient of friction needed for a frightened driver to take the same curve at 25.0 km/h?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

If a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads). A.)Calculate the ideal speed in (m/s) to take a 80 m radius curve banked at 15° B.)What is the minimum coefficient of friction needed for a frightened driver to take the same curve at 20.0 km/h?
At amusement parks, there is a popular ride where the floor of a rotating cylindrical room falls away, leaving the backs of the riders “plastered” against the wall. Suppose the radius of the room is 2.418 m and the coefficient of friction between the rider and the wall is 0.42, what is the minimum the safe speed of the wall for the rider not to drop when the floor falls away. Use g=9.8 m/s2.
A flat (unbanked) curve on a highway has a radius of 210.0 m . A car rounds the curve at a speed of 28.0 m/s . Q: Suppose that the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you found in the previous part. What should be the maximum speed of the car so it can round the curve safely?
Problem L A roller-coaster car is moving on top of a vertical loop, as shown. The speed when it is at the top is 15 m/s. The radius of the loop is 50 m. The mass of the car is 150 kg. Find the force with which it presses the rails.
O) Circular motion, banked track, with friction: How slow can you go? A car drives in a circular path of radius R on a curved track, with coefficient of static friction , between the tires and the road. The track is banked at an angle from the horizontal. The conditions are very icy and the car is going just barely fast enough to keep from sliding down the incline. (See PSL 6.10, and 6.9 and 5 a) Draw a FBD of the car b) What is the minimum speed the car can go without beginning to slide down the incline? (in term of given quantities) The sh c) Determine this speed if , = 0.050, the angle is 15 degrees, and the radius is 100 meters. velocity directed out of the page, toward us R
A velodrome has an aggressively banked curve, where the surface makes an angle of 58.9 degrees with the horizontal. If you are biking around this curve (such that your path traces a horizontal circle with radius 21.7 m as you go around the turn), and the coefficient of static friction of your bike tires with the velodrome surface is 0.617, what is the minimum speed that you can go before starting to slip down the ramp? Give your answer in km/hr.
A BMX biker wanted to impress his family by catching some air( aka leaving the ground) while riding over a hill in Tennesse with a radius of curvature of 7.6m. If the BMX biker rides over the hill at 11.2 m/s, will she catch some air and excitee her family? B) What is the minimum speed the biker has to travel in order to leave the ground when cresting the hill?
CP Riding a Loop-the-Loop. A car in an amusement park ride rolls without friction around a track The car starts from rest at point A at a height h above the bottom of the loop. Treat the car as a particle. (a) What is the minimum value of h (in terms of R) such that the car moves around the loop without falling off at the top (point B)? B CR 3/2R 3R 2R 5/2R O R
A curve in a stretch of highway has radius 512 m. The road is unbanked. The coefficient of static friction between the tires and road is 0.700. What is the maximum safe speed that a car can travel around the curve without skidding?
A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars racein circles that are parallel to the ground. For a speed of 34.0 m/s, at what value of the distance d shoulda driver locate his car if he wishes to stay on a circular path without depending on friction? Include anFBD of the car along with the components of the relevant force
And don't worry about whether the passengers would actually survive the trip. They are lightweight crash test dummies. NTC A cart of mass m= 347 kg is going around a circular loop-the-loop. There is no motor. The cart moves only under the influence of gravity. Ignore friction and let g = 9.81 meters per second squared. The loop has a radius of r meters. When the cart is at the top of the loop, the normal force on the cart (exerted by the track) pushes down on the cart with a force of N = 1,330 newtons. When it is at the bottom of the loop, the cart has a speed of 30.7 meters per second. What is the radius of the loop (in units of meters)?
An amusement park ride called the Rotor debuted in 1955 in Germany. Passengers stand in the cylindrical drum of the Rotor as it rotates around its axis. Once the Rotor reaches its operating speed, the floor drops but the riders remain pinned against the wall of the cylinder. Suppose the cylinder makes 24.5 rev/min and has a radius of 3.70 m. What is the minimum coefficient of static friction ?sμs between the wall of the cylinder and the backs of the riders?