Posted by
**Johnathon** on
.

Proper design of automobile braking systems must account for heat buildup under heaving braking. Calculate the thermal energy dissipated from brakes in a 1460-kg car that descends a 15.5° hill. The car begins braking when its speed is 92 km/h and slows down to a speed of 28 km/h in a distance of 0.44 km measured along the road.