what-is-the-acceleration-of-a-solid-rubber-weight-resting-on-the-train-floor-rel

Question

What is the acceleration of a solid sphere rubber weight resting on the train floor relative to the car if the train accelerates with an acceleration a, assuming the object rolls without slipping?

Accepted Answer

-5/3 a_{train rel ground}

Answer

Answer

1/7 a_{train rel ground}

Answer

4/8 a_{train rel ground}