Q. In a head-on collision, a car stops in 0.29 {s} from a speed of 28 {m/s}. The driver has a mass of 78 {kg}, and is, fortunately, tightly strapped into his seat. what force is applied to the driver during that fraction of a second
Q. A 1500-kg car moving east at 20 m/s collides with a 1600-kg car moving south at 15 m/s and the two cars stick together.
What is the velocity of the cars right after the collision?