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The Forces — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsThe Forces4 Marks
Question
Calculate the force with which you attract the earth.
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Answer

Consider that a man is standing on the surface of the Earth.

Force acting on the man = mg

Here, m = mass of the man and g = acceleration due to gravity on the surface of earth (= 10m/s2)

Assume that the mass of the man is equal to 65kg.

Then F = W = mg = 65 × 10 = 650N = force acting on the man

$\therefore$ By Newton's third law (action-reaction are always equal), the man is also attracting the earth with a force of 650N in the opposite direction.

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