An unwary football player collides with a padded goalpost while running at a velocity of 7.50 m/s and comes to a full stop after compressing the padding and his body 0.350 m. (a) What is his acceleration? (b) How long does the collision last?

Q: If a bus travelling at 48 m/s is subjected to a steady deceleration of 5 m/s², how long will it take…

A: Given data :                      Deceleration     =     a                      Final velocity     =…

Q: ) A bockey puck initially travelling to the right at 34 m/s is slowed down by rough ice at a rate of…

A: Initial velocity of puck (u) = 34 m/s (towards right) Acceleration (a) due to rough ice = - 2…

Q: In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed…

A:

Q: When you step onto a hot beach with your bare feet, a nerve impulse generated in your foot travels…

A: Let v denotes the average speed of the nerve impulse, d denotes the distance travelled by the nerve…

Q: An object moves with an acceleration described as a(t)= 12t^2+4. Given that an object is at rest at…

A: The velocity of the object after 2 Seconds is 40 m/s

Q: A car is moving at a speed of 10 m/s, so if its speed is doubled due to uniform acceleration within…

A: Given data The velocity of the car is given as u = 10 m/s. The time interval is given as t = 10 s.…

Q: When spiking a volleyball, a player changes the velocity of the ball from 4.6 m/s to -24 m/s along a…

A:

Q: If a bus travelling at 34 m/s is subjected to a steady deceleration of 8 m/s², how long will it take…

A: Given data:  Initial velocity (Vi) = 34 m/s Acceleration (a) = -8 m/s2  Final velocity (Vf) = 0 m/s…

Q: A racquetball strikes a wall with a speed of 25 m/s and rebounds in the opposite direction with a…

A: Given data: Initial speed of racquetball is, u=25 m/s. Final speed of racquetball is, v=20 m/s. Time…

Q: If a bus travelling at 38 m/s is subjected to a steady deceleration of 6 m/s2, how long will it take…

A: We know thatv=u+atWherev=final velocityu=initial velocitya=accelerationt=time taken

Q: A ball is thrown straight up into the air. At the very top(maximum height) does the acceleration…

A: We knew that when the ball is thrown upward or downward the gravitational pull acts on it which…

Q: A child appears to be running into the street ahead. It takes 2.3 seconds for the driver to react…

A: Let u denotes the initial speed of the car, t denotes the time taken to stop the car, and a denotes…

Q: Due to an acceleration of 4 m/s2 the velocity of a body increases from 10 m/s to 30 m/s in a certain…

A: According to the Newton's laws of motion , the displacement is calculated by using the formula…

Q: If a car travelling at 64 m/s is subjected to a steady deceleration of 16 m/s², how long will it…

A:

Q: If a car travelling at 44 m/s is subjected to a steady deceleration of 6 m/s², how long will it take…

A:

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 vehicle is running with uniform acceleration covers 450 m in a 5 second interval and further it…

A: Given data as per question initial distance  =  450m time  =   5s

Q: After jumping, a skydiver descends vertically towards the ground, with the parachute open, at a…

A: Here speed of skidiver is contant and it move 12.5m to reach  the ground after dropping a coin∴ time…

Q: If a bus travelling at 18 m/s is subjected to a steady deceleration of 3 m/s?, how long will it take…

A: Given data :- initial velocity u = 18 m/s final velocity v = 0 m/s deceleration a = -3 m/s2

Q: Your friend tells you that the time-dependence of their car's acceleration along a road is given by…

A: Given:-  The time-dependence of their car's acceleration along a road is given by a(t) = γt2+γt here…

Q: If a bus travelling at 24 m/s is subjected to a steady deceleration of 6 m/s2, how long will it take…

A: Given data :   Final  velocity  =   v   Deceleration   =  a  Initial velocity   =  u        To find…

Q: What is the instantaneous velocity of a freely falling object 12 s after it is released from a…

A: Data Given ,  Object is released from a position of rest , means initial velocity ( u ) = 0 Time ( t…

Q: If a bus travelling at 16 m/s is subjected to a steady deceleration of 2 m/s², how long will it take…

A: Given data :                    Final   velocity    =   v                    Initial velocity     =…

Q: You toss a stone straight up and it comes back down in a total time of 6 s, what is the speed of the…

A:

Q: A baseball is hit with a bat and, as a result, its direction is completely reversed and its speed is…

A: Given  time of contact t=0.33s Initial speed V final speed -2V mass be m

Q: A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a…

A:

Q: A baseball is hit with a bat and, as a result, its direction is completely reversed and its speed is…

A: Assume that, the initial velocity is u m/s, so the final velocity is -2u m/s, this negative sign…

Q: Is it possible that the velocity of a body changes and its acceleration remains constant?

A: Acceleration is defined as the rate of change of velocity, the term constant acceleration means the…

Q: A bullet is fired with a muzzle velocity of 600 m/s. If the length of the barrel is 750 mm, what is…

A: Given data: Muzzle velocity, V=600 m/s Length of the barrel, L=750 mm=750×10-3 m=0.750 m Our…

Q: Can an object have zero velocity and nonzero acceleration at the same time? Yes O No

A:

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: A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a…

A: The distance covered by the player is

Q: If a bus traveling at 16 m/s is subjected to a steady deceleration of 5 m/s? . How long will it take…

A: Given data :             Final velocity  =  v           Deceleration   =  a          Initial…

Q: A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a…

A:

Q: If a bus travelling at 24 m/s is subjected to a steady deceleration of 2 m/s?, how long will it take…

A: Given: Intial Speed  (u) = 24 m/s  Acceleration (a) = - 2 m/s2  Final speed (V) = 0 m/s ....(rest)…

Q: If a bus traveling at 30 m/s is subjected to a steady deceleration of 6 m/s? . How long will it take…

A: Given : The initial speed of the bus is 30 m/s  The deacceleration of the bus is  6 m/s2. The final…

Q: An experimental rocket car starting from rest reaches a speed of 560 km/h  after a straight 400-m…

A:

Q: If a bus travelling at 25 m/s is subjected to a steady deceleration of 2 m/s², how long will it take…

A: Introduction :  In this question we are provided it value of initial velocity , final velocity and…

Q: A body is dropped freely from the roof of a building, traveling in the middle of the last second of…

A: Solution: Let (T) be the total fall of distance (h). As given the distance travelled in (T) the…

Q: If the average velocity of a car is nonzero for some time interval does this mean that the…

A:

Q: If a car is traveling with a constant velocity, what can you say about its acceleration?

A: Given data:  Velocity of car is constant.

Q: If a bus travelling at 20 m/s is subjected to a steady deceleration of 5 m/s, how long will it take…

A:

Q: Can an object have zero velocity and nonzero acceleration at the same time? Give examples

A: zero velocity and nonzero acceleration

Q: A engineer was accidentally thrown(downwards) overboard at an initial velocity of 6m.sand was in…

A:

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

A:

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”