A truck is going down an inclined plane of inclination 0 . The driver apply breaks to maintain constantspeed. The only other dissipative force apart from the breake force on the truck is the air resistance forcethat is equal to F. Assume no heating of discs due to air friction. The mass of truck is M and it has 4 wheels.The surface area of the metal disc in each wheel is A and mass of each discis m and specific heat capacityof its material is S. When breaks are applied the break shoein each wheel rubs against the metal disc. Thisproduces heat. This heat is used to heat the disc in the wheel only. Find the initial rate of rise of temperatureof each disc after the breaks are applied.
