Anyone pls help me with this qn.

1. Oct 18, 2005

gunblaze

Lets say i have a ball rolling horizontally at constant speed on a frictionless table in vacumm. When i exert a constant vertical force on the ball. Will the horizontal speed change due to the resultant force in the vertical direction? thx

2. Oct 18, 2005

Pengwuino

No. As long as its a frictionless surface, a vertical force won't result in any horizontal velocity change.

3. Oct 18, 2005

whozum

If its frictionless the ball won't be rolling.

4. Oct 18, 2005

SGT

If the force that started the movement was not applied in a direction passing through the center of mass, the ball will roll even in a frictionless surface.

5. Oct 18, 2005

whozum

Only if the angular velocity was the exact amount such that for every 2pi radians swept the ball traveled $2\piR$ units of length.. which is way more assuming than necessary for the problem.