A) 2 J
B) 1 J
C) 4 J
D) 8 J
Correct Answer: C
Solution :
If particle is projected vertically upward with velocity of 2m/s then it returns with the same velocity. So its kinetic energy \[=\frac{1}{2}m{{v}^{2}}=\frac{1}{2}\times 2\times {{(2)}^{2}}=4\,J\]
You need to login to perform this action.
You will be redirected in
3 sec
