A) \[\text{Mv}\]
B) \[\text{2 Mv}\]
C) \[\frac{\text{Mv}\,}{2}\]
D) \[\frac{\text{Mv}\,}{3}\]
Correct Answer: A
Solution :
[a] \[F=\frac{d\left( Mv \right)}{dt}=M\frac{dv}{dt}+v\frac{dM}{dt}\] \[\therefore v\text{ is constant,}\] \[\therefore F=v\frac{dM}{dt}\text{ But }\frac{dM}{dt}=Mkg/s\] \[\therefore F=vM\text{ newton}\text{.}\]You need to login to perform this action.
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