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Arrangement of two block system is as sh...

Arrangement of two block system is as shown. The net force acting on 1 kg and 2 kg block are (assuming the surfaces to be frictionless) respectively -

A

4 N, 8 N

B

1 N, 2 N

C

2 N, 4 N

D

3N, 6 N

Text Solution

Verified by Experts

The correct Answer is:
C
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Two blocks of mass 10 kg and 2 kg are connected by an ideal spring of spring constant K = 800 N//m and the system is placed on a horizontal surface as shown. The coefficient of friction between 10 kg block and surface is 0.5 but friction is absent between 2 kg and the surface. Initially blocks are at rest and spring is relaxed. The 2 kg block is displaced to elongate the spring by 1 cm and is then released. (a) Will 10 kg block move subsequently? (b) Draw a graph representing variation of magnitude of frictional force on 10 kg block with time. Time t is measured from that instant when 2 kg block is released to move.

Knowledge Check

  • Find fiction force acting on 2 kg block.

    A
    10 N
    B
    2N
    C
    8N
    D
    0N

  • In the system shown in the figure, the acceleration of 1 kg block is

    A
    `(g)/(2)` downwards
    B
    `(g)/(2)` upwards
    C
    `(g )/(4)` downwards
    D
    `(g)/(4)` upwards

  • In the figure shown, block of mass 2 kg is very long. Force of friction on 1 kg block is

    A
    always towards right
    B
    always towards left
    C
    is first towards right and then towards left
    D
    is first towards left and then towards right

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