Question

What is the gravitational potential energy of a stone of mass 505g at the top of a mountaain road of 500m high

Answer 1

Answer:

2474.5 J

Explanation:

Given,

Mass ( m ) = 505 g = 0.505 kg

Height ( h ) = 500m

Value of g = 9.8 m/s²

To find Potential energy ( P.E ) = ?

Formula : -

P.E = mgh

= 0.505 × 9.8 x 500

P.E = 2474.5 J

2474.5 J is the gravitational potential energy of a stone of mass 505g at the top of a mountaain road of 500m high.

Answer 2

☞Correct Question:

What is the gravitational potential energy of a stone of mass 505g at the top of a mountain road of 500m high.

☞Required Answer:

Potential energy (P.E.) of a stone is 2474.5 J.

☞Solution:

✩Given:

Mass of stone, m = 505g

Height, h = 500m

✩To find :

Potential energy (P.E.)

✩Formula :

✒Potential Energy = mgh

✒Value of 'g' = 9.8m/s²

☞How to solve:

✒Mass of stone , m = 505g

convert it into kg

505g = 0.505kg

✒Height = 500m

✒Potential Energy (P.E.) = mgh

= 0.505 × 9.8 × 500

= 2474.5 J

✒Therefore, Potential Energy = 2474.5J

☞More to know:

✩Mass is a amount of matter in a particle or object.

✩SI unit of mass is kilogram (kg).