Question

question 13
1 pts
the force needed to change the motion of an object rolling over a surface is __________ that of an object sliding on a surface.
greater than
the same as
larger than
less than

Explanation:

Rolling friction is generally less than sliding friction. When an object rolls, there is less contact area and less resistance compared to sliding. So, the force needed to change the motion (overcoming friction) of a rolling object is less than that of a sliding object.

Answer:

less than