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Two blocks of masses 2.9 kg and 1.9 kg a...

Two blocks of masses 2.9 kg and 1.9 kg are suspended from a rigid support S by two inextensible wires each of length 1 m. The upper wire has negligible mass and the lower wire has a uniform mass of 0.2 kg/m. Thewhole system of block, wire and support have an upward acceleration of 0.2 m/s2. g = 9.8 m/s2. The tension at the mid-point of lower wire is-

A

10N

B

20N

C

30N

D

50N

Text Solution

Verified by Experts

The correct Answer is:
B
`T_(B)=(1.9+0.1)xx10=20N`
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ALLEN -NEWTONS LAWS OF MOTION-EXERCISE-II
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  2. Two blocks each having a mass m are placed as shown in the figure. The...

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  3. Two blocks of masses 2.9 kg and 1.9 kg are suspended from a rigid supp...

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  10. A cork and a metal bob are connected by a string as shown in the figur...

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  11. A body kept on a smooth inclined plane having inclination 1 in x will ...

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  12. A pulley is attached to the celing of a lift moing upwards. Two partic...

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  13. Two masses of 1 kg and 5 kg are attached to the ends of a massless str...

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  16. Two masses 10kg and 20 kg respectively are connected by a massless spr...

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