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  • Two objects of different masses falling freely near the surface of moon would (a) have same velocities at any instant (b) have different accelerations (c) experience forces of same magnitude (d) undergo a change in their inertia

Two objects of different masses falling freely near the surface of moon would

(a) have same velocities at any instant

(b) have different accelerations

(c) experience forces of the same magnitude

(d) undergo a change in their inertia

Answers (1)

Ans. A

Sol.

When a body is dropped near the surface of moon, it would be attracted by moon’s gravitational force.

The gravitational force on any body will be equal to the product of mass of the body and acceleration due to gravity on moon.

Two bodies of different masses will experience different force on the moon.

However, their acceleration will be same by using Newton’s second law,

a=\frac{F}{M}

As both the bodies are starting from rest and have same acceleration, their velocities at any instant will be same.

v = u + at

u = 0 therefore, v = at.

Hence, the correct answer to this question will be option A.

 

 

Posted by

infoexpert24

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