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A block weighing 10 kg travels down a sm...


A block weighing 10 kg travels down a smooth curved track AB joined to a rough horizontal surface (see the figure.) The rough surface has a friction coefficient of 0.20 with the block. If the block starts slipping on the track from a point 1 m above the horizontal surface, how far will it move on the rough surface?

A

3 m

B

4 m

C

5 m

D

6 m

Text Solution

Verified by Experts

The correct Answer is:
C

`K_1+U_1=K_2+U_2+W_f`
`0+mgh=0+0+mumgd`
`d=(h)/(mu)=(1)/(0.2)=5m`
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