a driver accelerates his first car at the rate of 1.8 m/s2 and then at the rate of 1.2m/s2. calculate the ratio of the force exerted by the engine in the two cases?
F = m A ... acceleration is directly proportional to force, so ratio of forces is equal to ratio of accelerations. 1.8/1.2 = 1.5 . . . . Sorry this is as fast as I can type on my phone.
