A) 5 m/s away from the wall
B) 9 m/s away from the wall
C) 3 m/s away from the wall
D) 6 m/s away from the wall
Correct Answer: D
Solution :
Let v be the velocity of ball after collision, collision is elastic \[\therefore \,\,\,e=1\] or relative velocity of separation = relative velocity of approach \[\therefore \,\,\text{ }v-1=4+1\] or \[v\text{ }=\text{ }6\] m/s (away from the wall)You need to login to perform this action.
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