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IIT JEE

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Mechanics

Kinematics

Quick practice

Question 1 of 5

A bag which is full of sand (mass M) is hanging from a light thread. A bullet (mass m) hits the bag with a horizontal velocity ν and gets embedded in the bag. For the combined system (Bag + bullet), the correct statement is

A

Kinetic energy is \frac{m^2 v^2}{2(M+m)}

B

Kinetic energy is \frac{1}{2}(m+m) v^2

C

Momentum is \frac{m v M}{M+m}

D

Momentum is \frac{m v(M+m)}{m}

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