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A man of weight 50 kg carries an object ...

A man of weight 50 kg carries an object to a height of 20m in a time of 10 sec. The power used by the man in this process is 2000W, then find the weight of the object carried by the man [assume `g = 10 ms^(-2)`]

A

100KG

B

25KG

C

50KG

D

10KG

Text Solution

Verified by Experts

The correct Answer is:
c
power, `p=(M+m)gh/l`
`m=Pl/gh-M`
`m=(2000xx10)/(10xx20)-50=50kg`
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Knowledge Check

  • A man carries a load of 50kg to a height of 40m in 25s. If the power of the man is 1568W, the mass of the man is.

    A
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    B
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    C
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    D
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    A
    20 kg
    B
    50 kg
    C
    100 kg
    D
    75 kg

  • A man carries a load of 50 kg to a height of 40 m in 25 s. If the power of the man is 1568W, the mass of the man is,

    A
    20 kg
    B
    50 kg
    C
    100 kg
    D
    75 kg

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