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Impulsive Forces in Collision

A block of ma...

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A block of mass m is kept over another block of mass 2m, Coefficient of friction between two blocks is μ and that of between lower block and the horizontal surface is zero. A horizontal force F=4/3μ mg is applied on the block of mass 2m. Acceleration of lower block is.

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Q. A block of mass

m

is placed on another block of mass

M

which itself is lying on a horizontal surface. The coefficient of friction between two blocks is

μ_{1}

and that between the block of mass

M

and horizontal surface is

μ_{2}

. What maximum horizontal force can be applied to the lower block so that the two blocks move without separation?

Q. A block of mass

m

is placed on another block of mass

M

, which itself is lying on a horizontal surface. The coefficient of friction between the two blocks is

μ_{1}

and that between the block of mass

M

and the horizontal surface is

μ_{2}

. What maximum horizontal force can be applied to the lower block so that the two blocks move without separation?

Q. A block of mass m is placed on another block of mass M, which itself is lying on a horizontal surface. The coefficient of friction between two blocks is u and that between the block of mass M and the horizontal surface is u. What is maximum horizontal force can be applied to the lower block so that the two blocks move without separation?

Q. A block of mass m is kept over another block of mass 2m and the system rests on a smooth horizontal surface. The coefficient of friction between the blocks is 0.50. Find the work done by the force of friction on the smaller block by the bigger block during a displacement d the system, when a force mg is applied to the lower block.

Q. On a smooth horizontal surface a block

A

10 k g

is kept. On this block a second block

B

5 k g

is kept. The coefficient of friction between the two blocks is

0.4

. A horizontal force of

30 N

is applied on the lower block as shown. The force of friction between the blocks is (take

g = 10 m / s^{2})

.

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