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Maximum Push Using Friction

Two blocks ea...

Question

Two blocks each of mass $20 kg$ are connected by an ideal string and this system is kept on rough horizontal surface as shown. Initially the string is just tight then a horizontal force $F = 120 N$ is applied on one block as shown.

If friction coefficient at every contact is $μ = 0.5$ then which of the following represents the correct free body diagram.

A

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B

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C

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D

All of the above

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Solution

The correct option is B

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Similar questions

Q. Two blocks each of mass

20 kg

are connected by an ideal string and this system is kept on rough horizontal surface as shown. Initially the string is just tight then a horizontal force

F = 120 N

is applied on one block as shown.

If friction coefficient at every contact is

μ = 0.5

then which of the following represents the correct free body diagram.

Q. Two blocks each of mass

m

are placed on a rough horizontal surface and connected by a massless inelastic string as shown. The coefficient of friction between each block and horizontal surface is

μ

. The string connecting both the blocks initially has zero tension. The minimum force to be applied on block A to just move the two block system horizontally (without the string getting slack) is

Q. Two blocks each of mass

m

are placed on a rough horizontal surface and connected by a massless inelastic string as shown in the figure. The coefficient of friction between each block and horizontal surface is

μ

. The string connecting both the blocks initially has zero tension. The minimum force to be applied on block A to just move the two block system horizontally (without the string getting slack, given acceleration due to gravity

= g

Q. Figure shows the top view of a horizontal surface. Two blocks each of mass

m

are placed on the surface and connected with a string. The friction coefficient is

μ

for each block. A horizontal force

F

is applied on one of the blocks as shown in the figure.

F

has the maximum value such that there is no sliding at any contact. Then:

m_{1}

m_{2}

lying on a horizontal surface are connected to one another by a massless inextensible string. A constant force

F

is applied as shown in figure and block

m_{2}

just starts moving. Then

F

μ

is the coefficient of friciton):

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