You are driving your 1450-kg car on a straight highway at 67 mph when a deer jumps out into the middle of the road in front of your car. You have a quick reaction time of 0.60 seconds before applying the brakes which slow your car for 2.36 seconds before you enter a skid. Your car then skids for 39.4 m before coming to a stop. Assuming a coefficient of kinetic friction between the tires and the road of 0.45, find (a) the acceleration rate you had while the brakes were applied prior to the skid, (b) the total distance the car traveled from the moment the deer jumped to when the car stopped,  (c) the work done by the brakes, and the work done by friction during the skid.

Q: Consider the system of two crates shown below, which are tethered to each other by a massless…

A: Solution: given that m1 = 35 kg m2 = 60 kg L = 22 m angle = 31.7 degrees coeff of kinetic friction =…

Q: 2200 kg car is driving down a highway at a constant velocity when a deer jumps out onto the road…

A:

Q: A light plane of mass 1200 kg makes an emergency landing on a short runway. With its engine off, it…

A: Given:  Mass of plane, mp= 1200 kg Mass of sandbag, ms=130 kg Initial speed of plane, vp,i=35 m/s…

Q: A boy of mass 40.0 kg is sledding down a 70.0-m slope starting from rest. The slope is angled at…

A:

Q: A 1500kg car is driving on the road at a speed of 15 m/s. The driver applies the brakes, bringing…

A: Given- Mass of car , m = 1500 kg Initial speed  of car, u = 15 m/s Final speed of car , v = 0 m/s…

Q: A hockey puck having initial speed of 3.8 m/s comes to rest after a distance of 7.6 m. What is the…

A:

Q: A 10 kg-block moves on a smooth horizontal surface with a speed of 10 m/s and slides into another…

A: Given data: Mass = 10 kg Initial speed = 10 m/s Coefficient of friction = 0.25 Need to determine the…

Q: cat of 20 kg mass is running at 8.0 m/s toward a stationary skateboard with a mass of 2 kg. The cat…

A:

Q: speed A 4.50 kg box sits halfway up a 12.0 m long ramp that is inclined at an angle of 20.0°. You…

A:

Q: If the 50-kg crate starts from rest and attains a speed of 6 m/s when it has traveled a distance of…

A: Given:

Q: Two penguins, Wheezy and Mumble, are racing down an icy slope into the water below.  Wheezy has a…

A: The coefficient of friction μ=0.12 The angle of inclination θ=80 The free body diagram of the…

Q: You have been called to testify as an expert witness in a trial involving a head-on collision. Car A…

A: Car A has a weight m1=1515 lb and is travelling with a velocity say v1 towards east. Car B has a…

Q: A truck is traveling at 11.1m / s down a hill when the brakes on all four wheels lock. The hill…

A: Initial speed = V0  = 11.1 m/sFinal speed = V = 0 m/sAngle = 15 degrees

Q: A warehouse worker exerts a constant horizontal force of magnitude 85 N on a 40 kg box that is…

A:

Q: Manny Pacquiao's automobile is about to come closer to a barrier at a speed of 25 m/s along a level…

A:

Q: A car traveling at 60 mph (97,000 m/hr) can stop in 48 m on a level road. Determine the coefficient…

A: The objective of the question is to determine the coefficient of friction between the tires and the…

Q: An applied force of 43.9 N directed at an angle of -18.5 degrees with respect to the +x direction…

A:

Q: A hockey puck is hit on a frozen lake and starts moving with a speed of 15.0 m/s. If the coefficient…

A: initial velocity, u = 15 m/s  friction coefficient, μk =  0.2  time, t = 5 s

Q: Brake or turn? The figure depicts an overhead view of a car's path as the car travels toward a wall.…

A:

Q: You have been called to testify as an expert witness in a trial involving a head-on collision. Car A…

A:

Q: coefficient of friction between the tires of Shirley's 1985 Ford Coupe and the dry pavement is 0.71.…

A:

Q: A car is being driven along a country road on a dark and stormy night at a speed of 14 m/s. The…

A: Given information: The initial velocity of the car, u=14 m/s The distance from the tree where the…

Q: An airplane of mass 3.60 x 10° kg experienced problem in all its tyres when it was about to touch…

A: Mass of the airplane, M = 3.60 x 105 kg Displacement of airplane, d = 728 m Coefficient of Kinetic…

Q: A hockey puck having initial speed of 2.5 m/s comes to rest after a distance of 8.0 m. What is the…

A:

Q: You have been called to testify as an expert witness in a trial involving a head-on collision. Car A…

A: From conservation of energy,

Q: A packing crate with mass 80.0 kg is at rest on a horizontal, frictionless surface. At t = 0 a net…

A:

Q: VA = 30 m/s A Vg = 20 m/s B

A:

Q: The coefficient of friction between the tires of Shirley's 1985 Ford Coupe and the dry pavement is…

A:

Q: The coefficient of friction between the wheels of Yamaha motorcycle and the dry pavement is 0.79. An…

A:

Q: You are driving your car on a straight road with a coefficient of friction between the tires and the…

A:

Q: A truck with mass m has a brake failure while going down an icy mountain road of constant downward…

A:

Q: g up a grade of 15 with an initial velocity of 30 m/s. The coefficient of static friction between…

A: GivenAngle, θ=15°Initial velocity, u=30 m/sCoefficient of static friction between the tires and the…

Q: A 4.0-kg block is moving with a speed of 2.0 m/s in the i direction. Another block that has a mass…

A: The solution is given below

Q: A 5.8-kg toboggan is kicked on a frozen pond, such that it acquires a speed of 2.1 m/s to the right.…

A:

Q: You have been called to testify as an expert witness in a trial involving a head-on collision. Car A…

A:

Q: You have been called to testify as an expert witness in a trial involving a head-on collision. Car A…

A:

Q: You have been called to testify as an expert witness in a trial involving a head-on collision. Car A…

A:

Q: How fast will the fish be moving after swimming 1 m?

A: Thrust produced by tail motion F=0.65 N, mass of fish m=1.7 Kg and initial velocity of fish u=0.65…

Q: Mary and her sister are playing with a cardboard box on the neighborhood hill. Mary climbs into the…

A:

Q: Multiple-object systems with friction: Two boxes are connected by a weightless cord running over a…

A:

Q: A light plane of mass 1000kg makes an emergency landing on a short runway. With its engine off, it…

A: We are given mass of plane and mass of sand bag. We are given velocity of plane before landing. We…

Q: Emma and Katie are racing along in their new wagon. Upon reaching the bottom of the hill traveling…

A:

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: