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Gravity acts on all bodies in proportion to their masses; therefore heavy body falls faster than light body.

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in Engineering Physics I by (558k points)
Gravity acts on all bodies in proportion to their masses; therefore heavy body falls faster than light body.

(a) True

(b) False

I have been asked this question during an online exam.

My enquiry is from Mass and Density of the Earth topic in portion Mechanical Properties of Solids of Engineering Physics I

1 Answer

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Best answer
Correct answer is (b) False

To explain: If F id the gravitational force on a body of mass m, then

F=G Mm/R^2 = mg

Or g=GM/R^2

Clearly, F is proportional to mass but g does not depend on m. Therefore all bodies fall with the same rapidness if there is no air resistance.

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