Sometimes the curiosity factor at the scene of a car accident is so great that it produces secondary accidents as a result, while people watch to see what is going on. If an 800.-kg
sports car slows to 13.0 m/s to check out an accident scene and the 1200.-kg pick-up
truck behind him continues traveling at 25.0 m/s, with what velocity will the two move if
they lock bumpers after arear-end collision?

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

the answer is 12 as i may remember

: )