Mass = 0.5 kg
Energy = 1 J
Gravitation PE = mgh
⇒ h = GPE\over mg
⇒ h = 1\over 0.5 × 10 = 0.2 m
Mass = 0.5 kg
Energy = 1 J
Gravitation PE = mgh
⇒ h = GPE\over mg
⇒ h = 1\over 0.5 × 10 = 0.2 m
(a) Calculate the change in the gravitational potential energy of the skier between A and B. (b) If 75% of the energy in part (a) becomes the kinetic energy at B, calculate the speed at which the skier arrives at B.(Take g = 10 ms-2).