Question

Calculate the work being done by the force of gravity on an object weighing 2.4kg as...

Calculate the work being done by the force of gravity on an object weighing 2.4kg as it drops a distance of 1.2m near thte surface of the earth. Answer in SI units and show work.

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Homework Answers

Answer #1

Given,

Mass of the object, m = 2.4kg

Distance moved, S = 1.2m

Work done is given by,

Where,

F is the force

S is the displacement of the object

is the angle between F and S.

Here the force on the body is due to gravitation which is equal to the weight of the body. Therefore,

F = mg = 2.4 x 9.8 = 23.52N

Since gravitational force and displacement are acting in the downward direction towards earth, the angle between them is zero. Hence

= 0

Therefore,

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