Question

a body possess potential energy 460j whose mass is 20kg and is raised to a certain height.what is the height when g=10m/s 2.

Answer 1

2.3 m.

P.E.=mgh

h=P.E/(m*g)

all values are given

Answer 2

Answer: The raised height is the 2.3 m

Explanation:

Given that,

Potential energy  P.E = 460 J

Mass of the body M = 20 kg

We know that,

The potential energy is the product of the mass of the object, gravitational acceleration and height.

The potential energy is

$mgh = 460J$

$h = \dfrac{460\ J}{20\ kg\times 10 m/s^{2}}$

$h = 2.3 m$

Hence, the raised height is the 2.3 m.