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Spring Block's Time Period

A hollow cubi...

Question

A hollow cubical box P is moving on a smooth horizontal surface in the x-y plane with a constant acceleration of $\to a = 3^i + 4^j m / s^{2}$ . A block Q of mass 2kg is at rest inside the cubical box as shown in the figure. If the coefficient of friction between the surface of the cube P and the block Q is 0.6. Then the force of friction between P and Q is :

A

5 N

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B

8 N

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C

12 N

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D

10 N

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Solution

The correct option is D 10 N

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A block P of mass m is placed on a frictionless horizontal surface. Another block Q of same mass is kept on P and connected to the wall with the help of a spring of spring constant k as shown in the figure. $μ_{s}$ is the coefficient of friction between P and Q. The blocks move together performing SHM of amplitude A. The maximum value of the friction force between P and Q is:

A block P of mass m is placed on a frictionless horizontal surface. Another block Q of same mass is kept on P and connected to the wall with the help of a spring of spring constant k as shown in the figure. $μ_{s}$ is the coefficient of friction between P and Q. The blocks move together performing SHM of amplitude A. The maximum value of the friction force between P and Q is:

Q. A block of mass m, lying on a horizontal plane, is acted upon by a horizontal force P and another force Q, inclined at an angle

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to the vertical. The block will remain in equilibrium if the coefficient of friction between it and the surface is (assume P > Q)

Q. A block of mass

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, inclined at an angle

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(Assume

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