- #1
myko
- 13
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A hollow sphere with mass $$M$$ , radius $$R$$ , and moment of inertia $$I=2/3MR^2$$ about its center rolls without slipping with a initial center of mass speed $$v$$ towards a fixed ramp. It then rolls without slipping up the ramp. The ramp forms an angle $$\theta$$ with the horizontal. The coefficient of static friction between the ramp and ball is$$\mu_s$$ , and the coefficient of kinetic friction is $$\mu_k$$ .
How long will it take for the ball to reach its maximum height?
I can find the height at which the ball stops using energy equation. But not really sure how to calculate time it takes to get there. I always get that $$t=v/g \sin\theta$$, but I think it is wrong
How long will it take for the ball to reach its maximum height?
I can find the height at which the ball stops using energy equation. But not really sure how to calculate time it takes to get there. I always get that $$t=v/g \sin\theta$$, but I think it is wrong