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Part A
What is the magnitude of the momentum of a 2500 kg
k
g
car traveling at 11 m/s
m
/
s
?
Express your answer to two significant figures and include the appropriate units.


Part B
What is the magnitude of the momentum of a 200 g
g
baseball thrown at 32 m/s
m
/
s
?
Express your answer to two significant figures and include the appropriate units.

Respuesta :

abidemiokin

Answer:

A) 28000kgm/s

B) 6.40kgm/s

Explanation:

Momentum = mass * velocity of a body

A) Given

mass m = 2500kg

velocity v = 11m/s

Substitute

Momentum = 2500 * 11

Momentum  = 27500kgm/s

Momentum = 28000kgm/s (to 2 sf)

B) Given

mass m = 200g = 0.2kg

velocity v = 32m/s

Substitute

Momentum = 0.2 * 32

Momentum  = 6.4kgm/s

Momentum = 6.40kgm/s (to 2 sf)

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