Question

name two farm s of mechanical enegy. difine then and give there si unit find the energy of a body of mass 35 kg moving with velosity of 15m/sec .

Answer 1

2 forms of mechanical energy are:

kinetic energy
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energy possessd by any object due to its motion.si unit is joule(j)

potential energy
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energy possesd by an object by an object due to change in its height or shape
si unit is joule(j)

given:
m=35kg
v=15m/s
here energy possesd by object =kinetic energy = ek =1/2mv^2
=1/2*35 *15*15
=3937.5J
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