Two blocks A of 6 kg and B of 4 kg are placed in contact with each other as shown in Fig. There is no friction between both the blocks. The coefficient of friction between B and ground is 0.5. A horizontal force F is applied on A. Find the minimum and maximum values of F, which can be applied so that both blocks can move combinely without any relative motion between them.

10 N, 50 N

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12 N, 50 N

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12 N, 75 N

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None of these

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Solution

The correct option is C 12 N, 75 N

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Similar questions

Q. Two blocks

A

of 6

k g

and

B

of 4

k g

are placed in contact with each other as shown in figure.

There is no friction between

A

and ground and between both the blocks. The coefficient of friction between

B

and ground is 0.5. A horizontal force

F

is applied on

A

. Find the minimum and maximum values of

F

, which can be applied so that both the blocks can move combinely without any relative motion between them.

Two blocks of masses M = 5 kg and m = 3 kg are placed on a horizontal surface as shown in the figure. The coefficient of friction between the blocks is 0.5 and that between the block M and the horizontal surface is 0.7. What is the maximum horizontal force F that can be applied to block M so that both the blocks move together?