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How will the force needed to move an object be affected if the mass of the object changes from Hunter kilograms in 200 kg?
50
Force = ma = m(v-u)/t = (mv – mu)/t = change of momentum /time = rate of change of momentum
Momentum of an object changes from 100 kgm/s to 200 kgm/s in 2 seconds. What is the force applied on it?
Initial momentum, p1 = 100kg-m/s
Final momentum, p2= 200kg-m/s
Time,t= 2 s
Force,F = ?
Using the formula,
F= p2-p1/t
F= 200-100/2
F= 100/2
F= 50 N
The force applied is of 50 N.
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