A) 5.2 s
B) 4.3 s
C) 2.3 s
D) The man shall never gain the door
Correct Answer: B
Solution :
Kinetic energy acquired by the body = Force applied on it \[\times \] Distance covered by body \[v\,.\,E=F\,.\,\,d\] If F and d both are same then KE acquired by the body will be same.You need to login to perform this action.
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