With what minimum speed v must a small ball should be pushed inside a smooth vertical tube from a height h so that it may reach the top of the tube? Radius of the tube is R.
A
B
R
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
To reach at highest point of tube.
Final velocity, v = 0
∴ 
mv 2 + mgh = mg (2R)
⇒ v = 
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