A) 120
B) 80
C) 60
D) 40
Correct Answer: C
Solution :
Time taken by each ball to reach the maximum height. \[t=\frac{u}{g}\,=\,\frac{\sqrt{2gh}}{g}\,\,=\,\,\sqrt{\frac{2h}{g}}\,\,=\,\sqrt{\frac{2\times 5}{10}}\,\,=\,\,1s\] \[\because \] One ball is thrown in every 1s \[\therefore \] Total no. of balls thrown per minute = 60You need to login to perform this action.
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