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The block is given an initial velcoty v0...


The block is given an initial velcoty `v_0` on smooth curved surface, Its speed when it reaches to B will be

A

`v_0`

B

`(v_0+gh)^((1)//(2))`

C

`(v_0+2gh)^((1)//(2))`

D

none

Text Solution

Verified by Experts

The correct Answer is:
B
By conservation of mechanical energy (taking ground as reference level)
`K_A=U_A=K_B+U_B`
`(1)/(2)mv_0^2+mgh=(1)/(2)mv_B^2+(mgh)/(2)`
`v_B=(v_0^2+gh)^((1)/(2))`
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