A car with mass M = 1400 kg travels (horizontally) at a speed v: 80 kmfh then brakes to a stop. In the process of braking, the brakes" steel disks get hotter. If we need the disks' temperature to not increase by more than 120%). how much mass m should the disks have? The heat capacity of steel is C:O.47J!(g C). You can assume that the temperature of the rest of the car does not change and stays at 25C