A) 14 m
B) 28 m
C) 35 m
D) 7 m
Correct Answer: C
Solution :
The condition of slipping by particle from top is given by \[\cos \theta =2\text{/}3\] From the figure, \[h=r\cos \theta \] \[=21\times \frac{2}{3}=14\,m\] Therefore, the required height at which the particle will leave the sphere is \[=21+h=21+14=35\,m\]You need to login to perform this action.
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