Mr. Spencer is tired of losing push-up contests with his students so he starts going to the weight room more often. If Mr. Spencer applies a net force of 35 Newtons on a 7000 gram barbell, what will the acceleration be?

Apackage of supplies is dropped from a plane, and one second later a second package is dropped. neglecting air resistance, the relative velocity of the 1st package viewed from the second will 56) a) increase. b) be constant. c) be zero. d) depend upon their weight. e) decrease

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of