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A smooth sphere (mass 10kg. negligible ...

A smooth sphere (mass `10kg. ` negligible radius) rolls on a smooth curved surface from the point `A` with a speed of `10m//s` as shown in figure. The sphere reaches the point `D` passing through point `B`. If the ground is taken as reference . Then `[` Take `g=10m//s^(2)]`

The total energy of the sphere at the point `A`.

A

`2500J`

B

zero

C

`1500J`

D

`2000J`

Text Solution

Verified by Experts

The correct Answer is:
A
`ME_(A)=(1)/(2) Mv^(2)+Mgxx20=(1)/(2)xx10^(2)+10xx20xx10`
`=2500J`.
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