The acceleration of a ball as it rolls down a ramp is 4 m/s 2 . The ball is referred to 2 s after it starts to roll.
The velocity acquired after starting from rest is 8 m/s.

Name: The acceleration of a ball as it rolls down a ramp is 4 m/s 2 . The ball is referred to 2 s after it starts to roll. The velocity acquired after starting from rest is 8 m/s.
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Question

The acceleration of a ball as it rolls down a ramp is 4 m/s 2 . The ball is referred to 2 s after it starts to roll.  
The velocity acquired after starting from rest is 8 m/s.

Quizplus · Accepted Answer

Using the equation of motion, v=u+at where u=0 (starting from rest), a=4 m/s^2 and t=2s, we get v=8 m/s.
Therefore, the given statement is true.

The Acceleration of a Ball as It Rolls Down a Ramp