Which of the following tasks would best an individual achieve a goal to obtain a driver's license?
a. practicing driving
b. reviewing driving laws
c. taking practice tests
d. all of the above

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

What is the final velocity of the initial velocity of 25 and -50?

Idon’t quite understand this problem