Questions
A spring of force constant 10 N/m has initial stretch 0.2 m. In changing the stretch to 0.25 m, the increase of PE is about :
detailed solution
Correct option is A
Increase in PE = =12kx22−kx12=12(10)0.252−0.22=0.1125JTalk to our academic expert!
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A simple pendulum is swinging in a vertical plane. The ratio of its potential energies when it is making angles and with the vertical is,
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