Questions
A can filled with water is revolved in a vertical circle of radius 4 metre and the water just does not fall down. The time period of revolution will be
a
1 sec
b
10 sec
c
8 sec
d
4 sec
detailed solution
Correct option is D
The speed at the highest point must bev≥rgNow V=rω=r(2π/T)∴ r(2π/T)≥rgor T≤2πrrg≤2πrg∴ Tmax=2π49⋅8=4secTalk to our academic expert!
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