- #1
azizlwl
- 1,066
- 10
How far above its center should a billiard ball be struck in order it roll without any initial slippage?
Denote the ball's radius by R, and assume that the impluse delivered byt the cue is purely horizontal
Book Solution:
Since any static frictional forced supplied by the table is limited to μMg,the only sure way to avoid slippage is to create a situation in which zero frictional force is needed.
Fδt=Mvo and h(Fδt)=Icωo
ωo=vo/R
Hope somebody can explain the underline sentence.
Denote the ball's radius by R, and assume that the impluse delivered byt the cue is purely horizontal
Book Solution:
Since any static frictional forced supplied by the table is limited to μMg,the only sure way to avoid slippage is to create a situation in which zero frictional force is needed.
Fδt=Mvo and h(Fδt)=Icωo
ωo=vo/R
Hope somebody can explain the underline sentence.