Friction confuses you big time

Classical Mechanics Level pending

From the given picture find the time when the smaller block starts moving over the larger block?


The answer is 15.

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1 solution

Anshu Jha
Mar 19, 2014

we have 2 eq. 2t-2g=10a ...............................1 2g=20a.........................................2

on solving it , t=15sec. (g=10m/s^2)

check it again

Afreen Abbas - 7 years, 2 months ago

[2t=30a] (1) and [2t=10a-(1/2)10g] (2) (in lower block frame). anybody got the same thing? my ans was some 36.75

Pinak Wadikar - 7 years, 1 month ago

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