A body of mass 20 kg moving with a velocity of 10m/'s is brought to rest after some time find the change in momentum of the body
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5
Initial momentum = mu
20×10 =200kgm/s
Final momentum =mv
0kgm/s
Change in momentum
0-200
-200kgm/s
Answered by
3
Answer:200m/s
Step-by-step explanation:
Initial momentum = mu
20×10 =200kgm/s
Final momentum =mv
=0kgm/s
Change in momentum
=mv-mu
=0-200
=-200kgm/s
The negative sign indicates the force acts in opposite direction.
The average force that is necessary to stop a hammer is F=200N
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