Two balls A and B of masses m and 2 m ar...

Two balls A and B of masses m and 2 m are in motion with velocities 2v and v, respectively. Compare: The force needed to stop them in the same

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From Newton.s second law of motion,
Rate of change of momentum is directly proportional to the force applied on it.
`therefore` Force needed to stop A : Force needed to stop B = 1:1

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