A) \[137.5kg/s\]
B) \[185.5kg/s\]
C) \[187.5kg/s\]
D) \[127.5kg/s\]
Correct Answer: C
Solution :
Using the relation \[\left[ \frac{\Delta m}{\Delta t} \right]v-mg=ma\] Or \[\frac{\Delta m}{\Delta t}\times (800)=m(g+a)\] Or \[800\times \frac{\Delta m}{\Delta t}\times 5000(10+20)\] Or \[\frac{\Delta m}{\Delta t}=\frac{5000\times 30}{800}\] Or \[\frac{\Delta m}{\Delta t}=\frac{1500}{8}=187.5\,kg/s\]You need to login to perform this action.
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