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A block is placed as shown in the figure .What must be the frictional force between the block and the incline if the block is not to slide along the inclibe when the inclone is accelerating to the right at 3m/s² (sin 37Â°=3/5)?
g=10m/s²

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nix_13 12 ·2009-04-22 00:09:01

what has happened to the response ???!!!!!!????!!!!!????!!!!!

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virang1 Jhaveri ·2009-04-22 00:15:21

Let ma be the Force for that accelerating
Therefore
N = masinÎ¸ + mgcosÎ¸
f = Î¼N

Downwards force be T
T = macosÎ¸ +mgsinÎ¸
Therefore
f = T
f = macosÎ¸ +mgsinÎ¸
f = m(3*4/5 + 10*3/5
f =m(2.4 +6
f = 8.4m
Frictional force is 8.4m N

IS it rite?

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virang1 Jhaveri ·2009-04-22 00:23:57

nix answer pls?

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nix_13 12 ·2009-04-22 00:42:05

ans in 9/25mg

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