Q66. A car of mass M is moving with speed v. The brake of mass m and specific heat capacity c, is used to stop the car. If half of the kinetic energy of the car is absorbed by the brake, then what is the increase in temperature of the brake?Physics — Heat and Thermodynamics — Question 66 of 415A. Mv²/4mc B. Mv²/2mc C. Mv²/4McD. Mv²/2McPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →