A) 80 m
B) 40 m
C) 60 m
D) 20 m
Correct Answer: A
Solution :
After the collision, energy of ball \[=100\text{ }mg-20\text{ }mg\] \[=80\text{ }mg\] Therefore, the ball will go up to a height of 80 m by this energy.You need to login to perform this action.
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