A) 100 N
B) zero
C) 1000 N
D) 1100N
Correct Answer: D
Solution :
From the condition, \[(F-mg)t=mv\] \[\Rightarrow \] \[(F-100)\frac{1}{10}=10\times \sqrt{2\times 10\times 5}\] \[(\because v=\sqrt{2gh})\] \[\Rightarrow \] \[F-100=10\times 10\times 10\] \[\Rightarrow \] \[F-100=1000\] \[\therefore \] \[F=1000+100=1100N\]You need to login to perform this action.
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