Question

Please solve ninth problem

Answer 1

Answer:

v= 5m/s

Explanation:

momentum = mv

150 kg/s = 30kg* v

v= 5m/s

Answer 2

Mass=30 kg

Momentum= 150 kgm/s

but p=mv

150= 30 * v

30v= 150

v= 150/30 = 5 m/s.

Hence v = 5 m/s

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