A) \[\frac{Mv}{2}\]
B) zero
C) 2 Mv
D) Mv
Correct Answer: D
Solution :
\[F-\frac{d}{dt}(Mv)=v\frac{dM}{dt}+M\frac{dv}{dt}\] As v is a constant, \[F=v\frac{dM}{dt},\,\,\,But\,\,\frac{dM}{dt}=M\,\,kg/s\] \[\therefore \] To keep the conveyer belt moving force needed \[=\,\,\,vM\] newton.You need to login to perform this action.
You will be redirected in
3 sec