(a). A 1200 kg car accelerates from 95.0 km/h to 15.0 m…
(a). A 1200 kg car accelerates from 95.0 km/h to 15.0 m/s in 20.0 s. (i). What is the force of the car? (4.0 points) (ii). How far does the car travel in 25 s? (1.5 points) b). A woman with a mass of 75.0 kg is standing on one high-heeled shoe. The heel of the shoe has an area of 0.503 x10-4 m2. If she balances all her weight on that single heel, what pressure (in pascals) does she exert on the floor? (2.0 points) c). You wish to insert a steel rod with a diameter of 8 mm into a hole with a diameter of 7.994 mm. By how much would you have to lower the temperature (in °C) of the rod to make it fit the hole? (Linear expansion coefficient of steel is 12 x10-6/oC (2.0 points)