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In momentum of the object having mass 4k...

In momentum of the object having mass 4kg is `20kgms^(-1)`, what would be its kinetic energy?

A

`25J`

B

`50J`

C

`75J`

D

`100J`

Text Solution

Verified by Experts

The correct Answer is:
B
`E_(k)=(p^(2))/(2m)=((20)^(2))/(2(4))=(400)/(8)=50J`
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KUMAR PRAKASHAN-WORK AND ENERGY -QUESTION & ANSWER (CHOOSE THE CORRECT OPTION FROM THOSE GIVEN BELOW EACH QUESTION)
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