Question

A bag of wheat weighs 75 kg. Calculate the height to which it should be raised so that its potential energy is 7350 J.

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Answer

Question

A bag of wheat weighs 75 kg. Calculate the height to which it should be raised so that its potential energy is 7350 J. (Given g = 9.8 m/s2) [Ans. 10 m]

Answer

Mass (m) = 75 kg

Height (h) = To be calculated

Potential Energy (PE) = 7350 J

Now, PE = mgh

height (h) = PE\over mg

= 7350\over 75 × 9.8

= 10 m

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