A) 50 kg-m/s
B) 100 kg-m/s
C) 300 kg-m/s
D) 1000 kg-m/s
Correct Answer: B
Solution :
Given: \[F=10N,w=20kg,\] \[\Delta t=10sec\] The change in momentum of the body is given by \[\Delta p=F\times \Delta t=10\times 10\] \[=100\text{ }kg-m/s\]
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