Physics

To calculate the total mechanical energy of the skier at the bottom of the hill, we need to consider the conservation of mechanical energy.

Initial Energy:

At the top of the hill, the skier has gravitational potential energy because they are at a height, but no kinetic energy since they start from rest.

The formula for gravitational potential energy (PE) is: PE = mgh

where:

m = 50kg (mass of the skier),

g = 10m/s² (acceleration due to gravity),

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