A) 12N
B) 6N
C) zero
D) 18N
Correct Answer: B
Solution :
Here, rate of fall of sand on conveyer belt,\[\frac{dm}{dt}=2kg\,{{s}^{-1}}\] Conveyer belt speed \[v=s\,m{{s}^{-1}}\] Force F = ? \[F=v\frac{dm}{dt}=3\times 2=6N\]You need to login to perform this action.
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