A student drops an object out the window of the top floor of a high-rise dormitory. (a) Neglecting air resistance, how fast is the object traveling when it strikes the ground at the end of 2.4 s? Express the speed in mi/h for a familiar comparison.

A student drops an object out the window of the top floor of a high-rise dormitory. (a) Neglecting air resistance, how fast is the object traveling when it strikes the ground at the end of 2.4 s? Express the speed in mi/h for a familiar comparison.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 8OQ

See similar textbooks

Related questions

Q: A car is travelling at a constant speed of 100 km.hr at the highway when the driver noticed that the…

A: Given: Speed u=100 km/hr=100×518=27.78 m/s Distance S=10 m

Q: A beetle walks along the ground going to the east at 0.200km/hr for 1.000min., then he stops and…

A: Given data: The speed at which the beetle moves for the first t1 time, v1=0.200 km/hr. The time…

Q: On a national highway in a rural region of Laguna, a car is traveling at a speed of 20.0 m/s. Is…

Q: |A golfer rides in a golf cart at an average speed of 3.10 m/s for 28.0 s. She then gets out of the…

A: The average velocity of the golfer in the cart vc =3.1 m/s Distance travelled with vc in tc=28s is…

Q: A dynamite blast at a quarry launches a rock straight upward, and 2.0 s later it is rising at a rate…

Q: From the speed of 100 kph, a car decelerates at the rate of 15 m/min/sec along a straight road.…

Q: A stone is thrown straight upward with a speed of 20 m/s. It is caught on s way down at a point 5.0…

Q: A ball is thrown vertically downward with an initial velocity of 5.6 m/s. How far (distance in…

A: From the question it is given that Initial velocity of ball u = 5.6 m/s Time taken: t = 3.78 sec

Q: A man walks on sand at speed 1.20 m/s over a distance of 48.0 m, after which he walks on pavement…

A: Given :- speed on sand = 1.20 m/s distance = 48 m walk on pavement = 102 m average speed of entire…

Q: A car is travelling at a constant speed of 100 km.hr at NLEX when the driver noticed that the bridge…

A: The third kinematic equation relates final velocity, initial velocity , acceleration and net…

Q: woman walks a distance of 504m, with an average speed of 1.4m/s. What time was required to walk this…

Q: You normally drive on the freeway between Tayasan and Bayawan City at an average speed of 105 km/h,…

A: Average speed = 105 km/h time, t = 2 h 20 min Second day: average speed, v = 74.5 km/h

Q: In good weather the drive from Seattle to Spokane,Washington, on Interstate 90 takes 3 h 51 min at…

A: Given Time taken in good weather is t1=3 h 51 min=3 h+5160 h=3.85 h Average speed in good weather is…

Q: How far have you traveled after going a constant 5.06 m/s for 8.70 seconds?

A: Given that, Speed = 5.06 m/s Time = 8.70 s Formula :…

Q: An object moves in a straight line according to the law v = t^3 -6t^2+4t, where v is in meters per…

Q: The driver of a car traveling at 110km/h slams on the brakes so that the car undergoes a constant…

A: Given: The initial speed of the car is 110 km/h. The time taken by the car is 4.5 s.

Q: A stone is thrown straight upward with a speed of 20 m/s. It is caught on its way down at a point…

A: Given value--- initial speed = 20 m/s. height = 5m. We have to find--- time ?

Q: A car starts from 2.00 m/s and accelerates at 4.00 m/s2 for 6.00 s. How far has it traveled, in…

A: The initial velocity of the car, u = 2.00 m/s. The acceleration of the car, a = 4.00 m/s2. The time…

Q: A 5 kg object is shot straight up with an initial velocity of 1 m/s from the ground. If air…

Q: A train of has a maximum speed of 50 km/hr and its acceleration and deceleration are limited to a…

A: V = u + at for acceleration V= final velocity u = initial velocity a = acceleration t = time For…

Q: The world record for the hundred meter dash is 9.58 s. What is the corresponding average speed in…

A: Answer:- Distance (S) = 100 m Time (t) = 9.58 s Speed (V) = Distance/ time V = S/t V = (100…

Q: A deer is running east to west on a straight line. It runs (a) at a constant speed of 2.5 m/s for…

A: Given: Initial constant speed (v1) = 2.5 m/s. Initial time (t1) = 24 s. Second constant speed (v2) =…

Q: The average velocity on an outgoing trip is x miles per hour. The average velocity on the return…

A: Given:The average velocity on the return trip is 20 miles per hour slower, so the average velocity…

Q: What must be the average speed to travel 250 km in 2 hr? And in m / s?

A: Introduction: In physics, many of the physical quantity, came across in day to day life. Speed is…

Q: An automobile accelerates uniformly from rest to 72 km/h and then the brakes are applied so that it…

A: Solution: Convert 75 km /h to m/s. 75km/h=75×10003600 m/s=20.83m/s. Calculate the time taken during…

Q: Traveling with an initial speed of 70 kph, a car accelerates at 6000 km/m2 along a straight road.…

Q: If the velocity of a moving object is v(t)=t-2/t^2 in meters per second, then what is its…

A: Velocity is defined as the time rate of change of displacement. It is denoted by v and expressed in…

Q: An object is thrown straight up from the top of a building that is 31.2 m high. The object is thrown…

Q: A car is moving 14.4 m/s. It decelerates at -1.55 m/s? for 4.26 s. It then accelerates at 1.83 m/s?…

A: Given; u=14.4 m/sa1 = -1.55 m/s2t1= 4.26 sa2=1.83 m/s2v2 = 11.8 m/s

Q: During astronaut training, the person rides a simulated rocket, accelerating from rest to maximum…

A: X=16.34

Q: During landing, the speed of an aircraft decreases uniformly from 50 m/s to 10 m/s over a distance…

A: Given: The initial velocity of the aircraft is 50 m/s. The final velocity of the aircraft is 10 m/s.…

Q: A 1050 kg car is traveling at a speed of 25 m/s when the driver sees that there is a tree across the…

Q: The speed of a vehicle falls uniformly from 18 m/s to zero at a deceleration of 2.55 m/s?.…

A: Given, initial speed of car=u=18 m/s Final speed after deceleration=v=0 m/s deceleration=a=-2.55…

Q: The runway of an airport in Oman has been designed such that the lowest acceleration for a plane to…

A: Write the given values of the problem- Acceleration(a) a=14.3 ms2 speed(v) v=54.9 m/s u=0

Q: How far (in m) does a car going 25 m/s travel in 7 s?

A: Write the expression for distance travelled by the car .

Q: From a speed of v= 48 kph, a train decelerates at the rate of 2m/min², along the path. How far in…

Q: Would a driver traveling at 15m/s in a 35m/ h zone be exceeding the speed limits?

A: Given data The speed of the driver is v=15 m/s The speed limit of the zone is vo=35 m/h The…

Q: The electric train in Addis Ababa is designed to operate at à limiting acceleration and declaration…

A: Answer 42.4096 second

Q: If an object were to freely, from what height would it need to drop to reach a speed of 70.0m / s…

A: Given data: Initial velocity (v0) = 0 m/s Final velocity (v) = 70.0 m/s Required: The height (h) of…

Q: Straight? An object moves in a straight line according to the following position function, x(t) =…

A: Position of the object as a function of time x(t)=-14+3t

Q: A rock is thrown directly upward from the edge of the roof of a building that is 43.8 meters tall.…

Q: An automobile starting from rest speeds up to 72 kph with a constant rate of 4 m/s', runs at this…

A: Given data u=0V=20 m/sa=4 m/s2a=-5 m/s2

Q: A long distance runner has an average speed of 3.0 m/s. How far (in m) does the runner travel in 20…

A: The expression for the travelled distance is,

Q: At a certain time a particle had a speed of 73 m/s in the positive x direction, and 2.7 s later its…

A: Initial velocity of a particle (u) = 73 m/s in positive x direction After a time (t) of 2.7 seconds…

Q: A motorist travels for 2h at 70 km/h and 1h at 100 km/h. What is her average speed for the trip? O…

Q: When the legal speed limit for the New York Thruway was increased from 55 mi/h to 65 mi/h, how much…

Q: A bicyclist is practicing to increase his endurance for a one-hour trip. He has an average speed of…

Concept explainers

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

Question

A student drops an object out the window of the top floor of a high-rise dormitory.

(a) Neglecting air resistance, how fast is the object traveling when it strikes the ground at the end of 2.4 s? Express the speed in mi/h for a familiar comparison.

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

Given and required quantities

VIEW

Velocity of the object when it hits the ground

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

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

A student drops an object out the window of the top floor of a high-rise dormitory. (a) Neglecting air resistance, how fast is the object traveling when it strikes the ground at the end of 3.9 s? First used standard British units and then express the speed in mi/h for a familiar comparison. (ft/s and mi/h) (b) How far, in meters, does the object fall during the 3.9 s? Comment on how many floors the dormitory probably has. (Assume that there are 32 floors/100 m.)
An object is dropped at rest from the roof of a building of height h. Neglect air resistance. In the last t = 0.30 seconds the object falls a distance of h/5. What is the height of the building h in meters?
You drive your car from home to school at an average speed of 60 kph East for 1 hr and then continue 80 kph North for 1.5 hrs. (a) What is your average speed for the entire trip? (b)What is your average velocity for the entire trip?
A hippopotamus can run up to 9.86 m/s. Suppose a hippopotamus uniformly accelerates 0.28 m/s² until it reaches a top speed of 9.86 m/s. If the hippopotamus has run 25.1 m, what is its initial speed in m/s? (round your answer to two decimal places; DO NOT include units)
In World War II, there were several reported cases of airmen who jumped from their flaming airplanes with no parachute to escape certain death. Some fell about 20,000 feet (6000 m), and some of them survived, with few life- threatening injuries. For these lucky pilots, the tree branches and snow drifts on the ground allowed their deceleration to be relatively small. If we assume that a pilot's speed upon impact was 123 mph (54 m/s), then what was his deceleration? Assume that the trees and snow stopped him over a distance of 3.0 m.
Starting from rest, a bus leaves a gas station with a constant acceleration of 2 m/s^2 until it reaches a speed of 10 m/s. The bus then continues to move with this speed (10 m/s) for 5 s. Then the bus decelerates at 2.5 m/s^2 until it stops. What is the total distance traveled by the bus? (Answer: 95 m)
A car travels from A to B at an average speed of 80 kph and back to A without loss of time at an average speed of 100 kph. Determine the average velocity for the entire trip. (A) 9.98 kph в) о кph 98.98 kph D 88.89 kph E 8.89 kph
A rock is thrown from a bridge 21.5 m above water with an initial speed of 14 m/s. Assuming negligible air resistance, what is the speed that the rock hits the water with, in meters per second?
1. A ship steams at a constant velocity of 15 m/s . (a) How far does it travel in a day? (b) How long does it take to travel 500 m? 2. Car moves at 50 m/s for 30s and then at 60 m/s for 2 h. (a) How far did it go? (b) What was its average velocity for the entire trip ?
A typical reaction time to get your foot on the brake in your car is 0.2 seconds. If you are traveling at a speed of 47 kph, what distance will your car travel during this reaction time? Express your answers in meters.
a motorist suddenly notices a stalled car and slams on the brakes, decelerating at the rate of 6.3 meter per second square. unfortunately, this isn't good enough, and a collision ensues. from the damage sustained, police estimate that the car was moving at 18km/h at the time of collision. they also measures skid marks 34m long. (a) how fast was the motorist going when brakes were first applied? (b) how much time was elapsed from the initial braking to the collision?
While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off of the shelf that is 2.53 meters high. Neglecting air resistance and assuming the book has an initial velocity of 0 m/s, what speed will the book have right before it hits the ground?