Diego and mika are trying to fix a tire on diego’s car, but they are having trouble getting the tire loose. when they pull together, mika with a force of 23 n and diego with a force of 31 n, they just barely get the tire to budge. what is the magnitude of the strength of the force between the tire and the wheel?

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.

What kind of simple machine is a catapult?