PHYSICS 1A03 Lecture 16: Physics1A03 Lecture 16 Momentum

• School: McMaster University
• Department: Physics
• Course: PHYSICS 1A03
• Professor: S. Cormier, K. Dalnoki-Veress

Document Summary

2) review for midterm 2 ( nov 8th) *if system does not experience a net external force: *when an object experiences a change in momentum, it is due to a force applied for a period of time: *suppose a constant force f is applied for a short time . Area = base x height area = force(n) x time (s) Units : n x s = kg m/s2 x s = kg m/s. *impulse when the force is non-uniform: t impulse j can be interpreted as the area under the curve ! Still consider j = area under the curce. Area = (cid:2869)(cid:2870) x fmax x t this is average force fave. *when two objects collide, they will always conserve momentum. However, the amount of energy lost in the collision can vary. 1) the collision results in two objects sticking together. 2) they leave the collision with the same .