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OpenStudy (yadu123):
A 15 N force directed to the west acts on an object for 3.0 seconds. What is the change in momentum of the object? 0.20 Ns, west 5.0 Ns, west 12 Ns, west 45 Ns, west
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OpenStudy (yadu123):
i think its 5.0 ns west
OpenStudy (yadu123):
thx
OpenStudy (perl):
Force = change in momentum / change in time. force * time = change in momentum
OpenStudy (perl):
If you have taken calculus, we can write it as F = dp/dt delta t * F = dp
OpenStudy (yadu123):
ok
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OpenStudy (perl):
in physics p stands for momentum. and dp/dt is the rate of momentum with respect to time. or the change of momentum with respect to time
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