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Find the value of friction forces betwee...

Find the value of friction forces between the blocks A and B and between B and ground. ( Take , `g=10 ms^(-2)`)

A

90 N,5 N

B

5 N,90 N

C

5 N,75 N

D

0 N,80 N

Text Solution

Verified by Experts

The correct Answer is:
D
(d) Maximum force of friction between ground and B is `f=(M+m)mu g`
`implies (15+5)(0.6)(10)=120N`

As `f_("max")gtF`
`therefore` Frictional force between B and ground will be 80 N.
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