Calculate the momentum fora) a 0.2 kg riﬂe bullet traveling 100 m/s.Answer in units of kg ·m/s.

b) a 1200 kg automobile traveling 0.1 m/s(a few miles per hour).Answer in units of kg ·m/s.

Round five decimal places

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momentum = mass*velocity

for riﬂe bullet

momentum = o.2*100=20kg ·m/s

for automobile

momentum = 1200*0.1=120kg ·m/s

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