Aball rolls down an incline 12 m long in 3.0 s.
a. assuming that the ball is uniformly accelerated, what is its average speed?
b. what is its final speed? 2. a ball rolls down a hill with a constant acceleration of 3.0 m/s^2.
a. if it starts from rest, what is its speed at the end of 4.0 s?
b. how far did it move? 3. a car starting from rest is accelerated at the constant rate of 3.0 m/s^2.
a. what is its speed at the end of 8.0 s ?
b. how far did it travel during the first 8.0 s?