contestada

An 80.0 kg skier slides down a hill shaped as shown. Assume
the skier begins to slide down the hill without friction or air
resistance and is accelerated only by the effect of gravity. The
skier is moving at 15 m/s at the bottom of the slope. At what
height above this did the skier start?

Respuesta :

onyebuchinnaji

The height above the ground from where the skier start is 11.5 m.

Conservation of energy

The height above the ground from where the skier start is determined by applying the principle of conservation of energy as shown below;

P.E = K.E

mgh = ¹/₂mv²

gh = ¹/₂v²

[tex]h = \frac{v^2}{2g} \\\\h = \frac{15^2}{2 \times 9.8} \\\\h = 11.5 \ m[/tex]

Thus, the height above the ground from where the skier start is 11.5 m.

Learn more about conservation of energy here: https://brainly.com/question/166559

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