4.In the example of a soccer ball rolling to a stop, friction acts as that changes the ball's motion. A. An outside force B. Momentum C. Kinetic energy D. A theory 5.Newton's 2nd Law of Motion describes the relationship between all of the following, except A.Mass B.Force C.Velocity D. Acceleration of 40 kg accelerated down a water slide at 4 m/s/s, they would hit the

A ball has momentum of 16kgm/s when the ball is rolling at 2m/s. What is the mass of the ball?   A. 8kg   B. 16 kg   C. 8 lbs   D. 8N

Acceleration of a rocket at launch                                                                        Rebound of a basketball off the backboard                                                                        Occupant protection in an automobile crash                                                                        Proportional to velocity                                                                        Proportional to square of velocity A. Elastic collision B. Kinetic energy C. Inelastic collision D. Conservation of momentum and thrust E. Momentum

56.  When the speed of an object is quadrupled, its kinetic energy is    A. doubled   B. increased by 16x   C. quadrupled   D. increased by 8x   E. decreased in half

i need the answer quickly

A 1,500 kg Audi race car travels at 30 m/s. a). What is its momentum? b) If the same car slows to a stop, what is its final momentum? c). What is the change in momentum of the car from 30 m/s to stop. d) If the car slows down in 5 seconds, what force does the car experience in braking?

A pair of discs connected by an elongated spring are held still on a frictionless air table, as shown above. The discs are then released simultaneously. If the first disc has three times the mass of the second disc, identify the value that is identical for both discs as the spring exerts a force upon the two discs to pull them together. O A. Velocity O B. Kinetic energy O C. Magnitude of momentum O D. Speed O E. Acceleration

When a large force acts for a short time on an object, it is called  a. Acceleration  b. Impulse c. Linear Momentum  d. Force

Which of the following objects has the most momentum? A. A baseball moving at 45 m/s B. A freshman running down the hall to avoid tardy sweeps C. The school D. A train traveling at 45 miles per hour

A 10-N net force is applied for 5.0 s to a 12-kg box initially at rest. What is the speed of the box at the end of the 5.0 s interval? A. 7.5 m/s B. 5.25 m/s C. 4.17 m/s. D. 8.12 m/s