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Blocks m(1) and m(2) starts from rest an...

Blocks `m_(1)` and `m_(2)` starts from rest and move to right with accelerations as shown. If `t` is in second then the time when block `m_(3)` again come to rest from `t =0` is (pulley and strings are ideal) :
.

A

2 sec.

B

1 sec.

C

3/2 sec.

D

1/2 sec.

Text Solution

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The correct Answer is:
D
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FIITJEE-LAWS OF MOTION-ASSIGNMENT PROBLEMS (OBJECTIVE) (Level - 1)
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  2. A block is placed on a rough horizontal plane. A time-dependent horizo...

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  3. Blocks m(1) and m(2) starts from rest and move to right with accelerat...

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  4. A homogoneous chain of length L lies on a table. The coefficient of fr...

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  5. In the arrangement shown in figure, pulley is smooth and massless and ...

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  6. Given m(A) = 30 kg, m(B) = 10 kg, m(C) = 20 kg. Between a & B mu(1) = ...

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  7. A body is placed on a rough inclined plane of inclination theta. As t...

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  8. A body is placed on a rough inclined plane of inclination theta. As th...

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  9. A block is placed on a rough horizontal plane attached with an elastic...

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  10. Two blocks of masses 2 kg and 4 kg are kept on a frictionless and smoo...

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  11. A block A is placed over a long rough plank B of same mass shown belo...

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  12. Two blocks A & B are connected by the massless string & pulley. As the...

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  13. Block of mass m is stationary w.r.t. wedge. Normal force exerted by we...

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  14. Consider the situation as shown in figure, frictional force acting bet...

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  15. In the arrangement shown in figure pulleys and strings are ideal m(1) ...

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  16. A system is shown in figure. Blocks 2 & 3 kg are at rest then co-effic...

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  17. A lift is moving up with an acceleration of 3.675 m//sec(2). The weigh...

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  18. A block of mass 5 kg is placed on a rough horizontal plane. The coeffi...

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  19. The triangular wedge shown in the figure is pulled towards left with a...

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  20. A particle of mass m is observed from an inertial frame of reference a...

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