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An object of mass 2 kg is thrown vertically up with a initial velocity of 20 m/s . What will be its potential energy after 2 seconds ? Value of g is 10 m/s^2.
Verified Answer
An object of mass 2 kg is thrown vertically up with a initial velocity...
H=vt+1/2at^2

h=20*2 + 1/2 * (-10)2*2

h= 40 + -(20)

h=20 m

potential energy 

U=mgh

U=2 * 10 * 20

U=400J
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An object of mass 2 kg is thrown vertically up with a initial velocity of 20 m/s . What will be its potential energy after 2 seconds ? Value of g is 10 m/s^2.
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