- Classical Mechanics
A 80kg man jumps out of a plane at a height of 1500m; how much energy is lost?
A 80kg man jumps out of a plane at a height of 1500m and v=4.5m/s^2 How much energy is lost? (assume no wind resistance)
Energy lost (E) = P.E. + K.E. = m*g*h + (1/2)*m*v^2
=> E = 80*9.8*1500 + ...
With good explanations and calculations, the problem is solved.