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A box of weight 150 kgf has gravitational potential energy stored in it equal to 14700 J. Find the height of the box above the ground. 
A box of weight 150 kgf has gravitational potential energy stored in it equal to 14700 J. Find the height of the box above the ground. 
Class 10 | ICSE | Physics | Selina | Work Energy
A box of weight 150 kgf has gravitational potential energy stored in it equal to 14700 J. Find the height of the box above the ground. 

Solutions:

According to the question –

Gravitational potential energy is 14700 J

Expression of force of gravity is mg

Therefore, we have –

= 150 × 9.8 N/kg = 1470 N

We have, gravitational potential energy is mgh

So, we have – 14700  = 1470 × h

Therefore, h = 10 m

i

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