Question

a person of mass 40 kg climbs up a stair case with ten steps, if the height of eachstep is 15 cm , calcuate potencial energy gained by the person (g=10m/s-2)

Answer 1

Here,

m=40kg

g=10m/s

h=15cm*10

=150cm=1.5m

P.E = mgh

=40*1.5*10

=60.0 J

Answer=60joules