A constant force acts on a system of two blocks of masses m1 and m2 m1-m2- then-

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Question

A constant force acts on a system of two blocks of masses m₁ and m₂(m₁>m₂), then-

Acceleration of COM is constant

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Velocity of COM is constant

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Velocity of m1 may be constant

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Velocity of m2 may be constant.

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Solution

The correct option is D
Velocity of m2 may be constant.

Correct answer is option (a), (c), (d):
Explanation of correct option:
Option (a) Acceleration of COM is constant ( as $F o r c e, F = \frac{m}{a} = c o n s \tan t)$
Option (C) Velocity of $m_{1}$ may be constant -It is a possibility that if acceleration of mass is constant, particles in the system may have the constant velocity. option (c) is the correct answer.
Option (d) says velocity of $m_{2}$ may be constant - this may be possible when acceleration of system of particles is constant then velocity will also be constant Hence option (d) is correct answer.
Explanation of incorrect option:
Option (b) Velocity of COM is constant (As acceleration of the COM is non-zero, and acceleration is defined as rate of change of velocity, so Velocity of COM cannot be constant, when acceleration is non-zero.) so option (b) is incorrect.
Hence option (a), (c), (d) are correct.

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A constant force acts on a system of two blocks of masses m1 and m2 (m1>m2), then-

A constant force acts on a system of two blocks of masses m₁ and m₂(m₁>m₂), then-