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Potential Energy of an Object at a Height

A crane lifts...

Question

A crane lifts a block of mass 1000 Kg through a vertical height of 15 m in 25 sec. Calculate the power of crane. Given g = 10 m/s².

600 W

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6000 W

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6 W

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60 W

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Solution

The correct option is B
6000 W

Power = Energy / time

Since, the mass is lifted through a height 'h' it possesses potential energy, taking g = 10 m/sec²

P = mgh /t

= (1000 x 10 x 15)/25

= 6000 W

Power of crane = 6000 W

Suggest Corrections

Similar questions

100 k g

10 m

20 s

g = 10 m s^{- 2})

100 k g

10 m

20 s

g = 10 m s^{- 2})

1000 k g

100 m

80

{g = 9.8 m / s}^{2}

100 k g

8 m

4 s

20 s

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