50+ Linear Momentum of a System of Particles MCQs and Answers

Linear Momentum of a System of Particles MCQs and Answers will be useful for various entrance exam like NEET, AIIMS, JEE. It includes an extensive section of physics and chemistry. These chapter covers each and every topic of System of Particles and Rotational Motion and more. It also contains chapter-wise MCQs with hints and options to make your preparation easy. We also published System Of Particles And Rotational Motion MCQs and Answers which are most important and relevant topic to your upcoming examination.

Linear Momentum of a System of Particles MCQs and Answers

1. A radioactive particle at rest, having mass 10g, breaks into 2 fragments (1&2) in the mass ratio 2:3 respectively. If the first one moves with a velocity of 10m/s what will be the speed of the second particle?

a) 4.33 m/s

b) -4.33 m/s

c) -6.67 m/s

d) 6.67 m/s

Answer: c

2. There are two external forces acting on a system of particles. Select the correct statement.

a) Linear momentum is necessarily not conserved

b) Linear momentum may be conserved

c) Linear momentum is zero

d) Centre of mass will move with increasing speed

Answer: b

3. Which of the following is the mathematical representation of law of conservation of total linear momentum?

a) dP/dt = 0

b) dF/dt = 0

c) dP/dt = Finternal

d) dF/dt = P

Answer: a

4. A ball of mass 2kg is moving with a speed of 10m/s along a flat surface. It collides with another ball of mass 3kg and comes to rest, what will be the speed of the second ball after collision?

a) The above said situation is not possible

b) 20m/s

c) Zero

d) 6.67m/s

Answer: a

5. On collision of two balls linear momentum is conserved, it implies that even kinetic energy will remain conserved. True or False?

a) True

b) False

Answer: b

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