TOUTSTIL TEC. Calculator 0
A 1,550 kg roller coaster cart is pulled at a constant speed of 4.3 m/s to the top of a 53.5 m tall ramp that has
a 45° incline. The coefficient of friction between the ramp and the roller coaster cart is p = 0.052.
When the roller coaster cart makes it to the top of the ramp, the cable suddenly breaks and the roller coaster
cart accelerates back down to the bottom of the ramp.
tow cable
53.5 m
US
Calculate the work done by friction on the roller coaster cart as it rolled back down the ramp after the cable
broke.
Write your answer to three significant figures.
kJ