Question

Ton what height should a body of mass5kg be raised so that its potential energy is 490joule

Answer 1

Use the formula
Potential Energy = mgh

Here we have to find h.
Substitute the values of m, g, PE.


Hope you get your answer.

Answer 2

Answer:

We know that, potential energy due to gravitation is given by

P.E. = mgh

where, m is the mass,

g is the gravity

h is the height

Given, m = 5 kg, P.E. = 490 joules, g = 9.8 m/s^2

490 = 9.8 x 5 x h

h = 490/(9.8 x 5)

h = 490/49

h = 10 m

Hence, the body should be raised to the height of 10 m

Explanation:

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