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In the masses of A and B are 10 kg and 5...

In the masses of A and B are 10 kg and 5 kg . Calculate the minimum mass of C which may stop A from slipping Coefficient of static friction between block A and table is 0.2
.

A

`15kg`

B

`5kg`

C

`10kg`

D

`0kg`

Text Solution

Verified by Experts

The correct Answer is:
A
Since the given system is in equilibrium therefore tension in the string is `5g` .
When we consider the combination of `A` and `C` , then
`T=muR`
or `T=0.2[10+"mass of" `C]g`
or `5g=0.2[10+mass of `C]g`
or `"mass of" `C=15kg` .
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