UPSEE 2017 Solved Paper

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Question : 33 of 150
 
Marks: +1, -0
A ball moving in x - y plane, has velocity (4
^
i
−4
^
j
)
m
∕s
just before the collision with ground. Coefficient of restitution for collision is e=
1
2
.
What will be velocity of the ball just after the collision with ground?
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