Question

1. What is the gravitational potential energy of a 150kg object suspended 5m above the earth's
surface? (g=10m/s)​

Answer 1

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ANSWER :

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The mass of the object , m = 150 kg

The height, h = 5m

The acceleration due to gravity, g = 10m/s^2

The gravitational potential energy referred to the ground level, U is given by

$u = mgh$

where ,,

m is the mass of the object,

g is the gravitational acceleration and

h is the height of the object with respect to the ground.

Therefore the potential energy is,,,

U = 150 × 10 × 5

U = 7500 J

The potential energy is 7500 J

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Answer 2

Answer:

Hence, required gravitational potential energy = 7500 J

Explanation:

Here,

Gravitational potential energy = U

Mass = m = 150 Kg

Height = h = 5 m

Gravitational constant = g = 10 m/sec^2

We know that,

U = mgh

By applying values in the formula, we get,

=> U = 150 × 10 × 5

=> U = 7500 J

Hence, required gravitational potential energy = 7500 J