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please HELP!!!

What is the magnitude of the momentum of a baseball (m = 1.450 kg) traveling at a speed of 102 mi/h? Express your answer in SI units.

I am unsure where to start

2 answers

convert mi/hr into meters/sec.

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102 miles/hr in m/s
P = mv
P = 1450(kg) x 102(m/s) = 147900 (kg m/s)
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