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Lakhmir singh solutions

A 10g bullet travelling at 200 m/s strikes and remains embedded in a 2kg target which is originally at rest but free to move. At what speed does the target move off?

Mass of bullet, m1 = 10g = 0.01 kg

Velocity of bullet, v1 = 200 m/s

Mass of block with an embedded bullet, m2 = 2 + 0.01 = 2.01kg

Recoil velocity, v2 = ?

m1v1 = m2v2

v2 = 0.99 m/s

Mass of bullet, m1 = 10g = 0.01 kg

Velocity of bullet, v1 = 200 m/s

Mass of block with an embedded bullet, m2 = 2 + 0.01 = 2.01kg

Recoil velocity, v2 = ?

m1v1 = m2v2

v2 = 0.99 m/s

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