Question

A baby stroller is a rest on top of a hill which is 10 m high. The stroller and baby have a mass of 20 kg. What is the potential energy of the baby and stroller?

Answer 1

potential energy = mass x gravity x height
= 20 x 9.81 x 10
= 1962J

Answer 2

Answer: 1960 Joules

Step-by-step explanation: Potential energy is the energy possessed by an object by virtue of its position.

`P.E=m* g* h`

P.E = potential energy

m = mass of body = 20 kg

g = acceleration due to gravity =
`9.8ms^(-2)`

h = height of body = 10 m

`P.E=20kg* 9.8ms^(-2)* 10m=1960kgm^2s^(-2)=1960Joules`

`(1kgm^2s^(-2)=1Joule)`