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What are important topics in Work energy & Power?
1.Work energy & Theorem
2.Collision in 1 & 2 dimension
3.Potential energy of a spring
4.Motion along a virtical circle.
What are SI & cgs unit of energy?
Si – joule
cgs – erg
Is friction a conservative force?
No, friction is not a conservative force because work done by conservative force does not depend upon the path followed by object.
Q-1.What is the formula of Potential Energy?
A-1.Gravitational Potential Energy is = mgh
Where m = Mass of object
g = Acceleration due to gravitt
h = height of object
# Potential e energy of a Spring = 1/2 kx^2