A mass having an initial kinetic energy of 40 Jules gets a potential e – McqOptions

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1.	A mass having an initial kinetic energy of 40 Jules gets a potential energy of 10 Jules by reaching at a height h. What is the kinetic energy of the mass now?
A.	10 J
B.	20 J
C.	30 J
D.	40 J
Answer» C. 30 J

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