539PhysicsMedium
A wire suspended vertically from one end is stretched by attaching a weight of 20N to the lower end. The weight stretches the wire by 1mm. How much energy is gained by the wire ?
A0.04J
B0.01J
C1.0J
D0.02J
Correct answer
B. 0.01J
Explanation
0.01J is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.