(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A think cylindrical shell and a solid cylinder have the same mass and radius. The two are released side by side and roll down, w/o slipping, from the top of an inclined plane that is 4.9m above the ground.

When the first object reaches the bottom, what is the height above the ground of the other object?

2. Relevant equations

(delta)x=.5(Vi+Vf)t

3. The attempt at a solution

The problem also asked for the final linear velocity of both cylinders. Which I found to be:

shell: 6.92965m/s

solid:8m/s

I tried to use the delta x equation above, but time is not given so I had to use ratio to cancel out the time:

z: how far down the shell is

solid:

.5(8)t=(delta)x

=4t

shell:

.5(6.93)t=(delta)x

=3.465t

3.465t/4t = z/4.9

z=4.2445

answer: 4.9-4.2225=.655

however, this is wrong. Did I miss something?

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# Homework Help: Angular momentum with cylinders rolling

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