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3 years ago

A baseball has mass 0.145 kg.

Physics

1 answer:

Vesnalui [34]3 years ago

3 0

Answer:

a).p=15.67kg*m/s

b). F=7.83N

Explanation:

change in momentum is the subtraction from "after momentum" of the "before momentum" as momentum is a vector quantity this is a vector subtraction.

initial momentum of ball

m1v1 = (0.145)(44.0) = 6.38 kg-m/s

after momentum

m1v2 = (0.145)(64.0) = 9.28 kg-m/s

since these momentums are 180° opposite one must be called negative so their difference

6.38+9.28= 15.67 kg-m/s

change in momentum = 15.67 kg-m/s ANS a1

Impulse = change in momenutm = 15.67 ANS a2

Impulse =Favg*t

I=(2.00)Favg

Impulse from (a2) = 15.67

Favg = 15.67/2.00 =

F= 7.83 N

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