Question

Calculate energy needed to take an object of mass 20 kg to the height of 10m .If g=9.8m/s^2

Answer 1

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Refer to the attachment

Explanation:

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Answer 2

Answer:

Given:

Mass of the object = 20kg

Height = 10m

Acceleration due to gravity = 9.8m/s. square

Now ,

We know that kinetic energy = M ×G × H

so,

By putting the values we get

KE = 20×10×9.8

= 1960 KJ

Answer = 1960kJ