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?

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply