A) zero
B) \[u\frac{\Delta m}{\Delta t}\]
C) \[\Delta m\times \frac{du}{dt}\]
D) \[u\frac{\Delta m}{\Delta t}+\Delta m\times \frac{du}{dt}\]
Correct Answer: A
Solution :
The force exerted on the truck due to leaking of dust is \[\frac{\Delta m}{\Delta t}\times {{v}_{r}}\] in horizontal direction. Since there is no friction, no horizontal force acts on the truck hence no force is required to keep its uniform motion intactYou need to login to perform this action.
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