A) \[mg(h+d)\,+\frac{1}{2}k{{d}^{2}}\]
B) \[mg(h+d)\,-\frac{1}{2}k{{d}^{2}}\]
C) \[mg(h-d)\,-\frac{1}{2}k{{d}^{2}}\]
D) \[mg(h-d)\,+\frac{1}{2}k{{d}^{2}}\]
Correct Answer: B
Solution :
Key Idea Work done is equal to change in energy of body. Situation is shown in figure. When mass falls vertically on spring, then spring is compressed by distance\[d\].You need to login to perform this action.
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