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True or False: 1. A proctilev with no forces must have zero momentum

True or False:

1. A proctilev with no forces must have zero momentum

Science   Physics   
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Answer #1

From Newtons second law, we know that

where, F is the force applied on the body

p is the momentum

for F = 0,

dp/dt = 0

implies that

p = constant

So, for a projectile with zero/no force, the momentum is not zero, rather it is constant

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