On a roller coaster ride the total mass of the cart - with passengers included - is 290 kg. PeakK is at 44.5 m above the ground, peakL is at 28.0 m. The speed of the cart atK is 19.0 m/s, at L it is 12.6m/s. (The wheel mechanism on roller coaster carts always keeps thecarts safely on the rail.)
A.) How much energy is lost due to friction between the two peaks?
B.) The radius of curvature of the rail at peak L is 10.2 m. What isthe magnitude of the net force on a 73.8 kg passenger at this point?