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Question
The gravitational potential energy stored in a box of weight 150kgf is 1.5*10000J . Find the height of the box. Take 1kgf=10N
The gravitational potential energy stored in a box of weight 150kgf is 1.5*10000J . Find the height of the box. Take 1kgf=10N
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Solution
gravitational potential energy = mgh
m*g is the weight (w)
gravitational potential energy =w*h
given weight of the box as 150kgf = 150*10 =1500N (1kgf = 10N)
the total energy of the body is given = 1.5*10000 J = 15000 J
therefore
w*h = 15000
1500*h = 15000
h = 15000/1500
h =10 meter
m*g is the weight (w)
gravitational potential energy =w*h
given weight of the box as 150kgf = 150*10 =1500N (1kgf = 10N)
the total energy of the body is given = 1.5*10000 J = 15000 J
therefore
w*h = 15000
1500*h = 15000
h = 15000/1500
h =10 meter
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