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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 kinetic energy at `D`,

A

`2200J`

B

zero

C

`1500J`

D

`2000J`

Text Solution

Verified by Experts

The correct Answer is:
A
`KE_(D)=(ME)_(A)-(PE)_(D)=2500-10xx10xx3=2200J`.
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