A) mg
B) mg/2
C) more than 2mg
D) more than mg
Correct Answer: D
Solution :
Weight of a body is mg, where m is mass, g the acceleration due to gravity. A body is balanced when a force applied is equal to its weight. Therefore, to lift it up, an additional force is required. Hence, the minimum force required is \[(mg+ma)>mg\]which is greater than mg.You need to login to perform this action.
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