Question

a skier of mass 50 kg is 10 at a at the top of a sky jump he takes off from a for his jump to be calculate the change in the gravitational potential energy between a and b

Answer 1

Gravitational potential energy is the height energy indicated as GPE.

The formulae is :

GPE = mgh.

Where m is the mass of the object in Kilograms.

g the acceleration due to gravity and it is always 9.8m/s² on earth.

h the height of the object above the ground in meters.

In our case :

m = 50kg , g = 9.8m/s², h = 10m

GPE = 50 × 9.8 × 10 = 4900 Joules.