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A body of mass 2 kg is projected vertica...

A body of mass 2 kg is projected vertically upward with a velocity of `2msec^(-1)`. The K.E. of the body just before striking the ground is

A

2 J

B

1 J

C

4 J

D

8 J

Text Solution

Verified by Experts

The correct Answer is:
C
If particle is projected vertically upward with velocity of 2m/s then it returns with the same velocity.
So its kinetic energy `=(1)/(2)mv^(2)=(1)/(2)xx2xx(2)^(2)=4J`
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