A 1.25-kg ball begins rolling from rest with constant angular acceleration down a hill. If it takes 3.60 s for it to make the first complete revolution, how long will it take to make the next complete revolution?

The time taken is  

Explanation:

From the question we are told that

   The mass of the ball is  

    The time taken to make the first complete revolution is  t= 3.60 s

    The displacement of the first complete revolution is  

Generally the displacement for one  complete revolution is mathematically represented as

Now given that the stone started from rest

Now the displacement for two  complete revolution is

Generally the displacement for two complete revolution is mathematically represented as  

=>  

=>  

So

 The  time taken to complete the next oscillation is mathematically evaluated as

substituting values

there are no correct statementd on the list of choices you provided.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.