Question

find the potential energy of a body of mass 10 kg at a height of 1.8 m above the ground,,g=10m/s​

Answer 1

Answer:

180 joules

Explanation:

Given:

Mass of the body = 10 kg

Height to which the object is lifted = 1.8 metres

Gravitational force = 10 m/s²

To find:

Potential energy of the body when it is lifted 1.8 metres above the ground

Potential energy = Mass × gravitational force × height

Substituting the values in the formula:

P.E = 10×10×1.8

P.E = 100×1.8

P.E = 180 joules

The potential energy of the body when lifted to a height of 1.8 metres above the ground will be equal to 180 joules

Answer 2

Given :-

Height to which object lifted = 1.8m

Mass of body = 10kg

Gravitational force(g)= 10m/s

To find:-

The Potential Energy (P.E) when object lifted 1.8m high from the group

• Formula used !

$\dag{\small{\underline{\sf{Potential\ energy(P.E)= Mass(m)\times Gravitational \ force (g)\times height (h)}}}}$

$\bigstar{\boxed{\sf{P.E= M\times g\times h}}}$

Put the given values !

$:\implies\sf P.E= 10\times 10\times 1.8\\ \\ :\implies\sf P.E= 100\times 1.8\\ \\ :\implies\sf P.E= 180 \ joules$

$\dag{\small{\underline{\sf{P.E\ of \ body \ when \ lifted \ on \ 1.8m\ high = 180 \ joules}}}}$