# physics

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A baseball has a mass of about 155 g. What is
the magnitude of the momentum of a baseball
thrown at a speed of 95 mph?(Note that you need to convert mass
to kilograms and miles per hour to meters per
second.)
Answer in units of kg · m/s

• physics -

mass = 155/1000 = 0.155 kg.

V = 95mi/3600s * 1600m/mi = 42.2 m/s.

Momentum=m*V = 0.155 * 42.2=6.54 kg.m/s

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