If a ball rolls down an inclined plane and picks up 4 m/s each second it rolls, its acceleration is A)one half of 4 m/s. B)one half of 4 m/s². C)4 m/s². D)10 m/s².

Question

Quizplus · Accepted Answer

The acceleration of the ball is equal to the change in velocity divided by the time taken for the change to occur. Here, the ball picks up 4 m/s each second, so its velocity changes by 4 m/s in 1 second. Therefore, its acceleration is 4 m/s divided by 1 second, which is equal to 4 m/s². Therefore, the correct choice is C.

If a Ball Rolls Down an Inclined Plane and Picks