AST101H1 Lecture Notes - Lecture 8: Ellipse, Angular Momentum

• School: UTSG
• Department: Astronomy & Astrophysics
• Course: AST101H1
• Professor: C.B.Netterfield

Document Summary

Newtons laws of motion: an object remains in motion until something pushes on it external force, acceleration is proportional to how hard you push it inversely related to mass how heavy it is, for every force there"s an equal and opposite reaction. F = ma string pulling ball toward dude always accelerating toward him. If you add up momentums of everything in a closed system you will find that no matter what happens momentum is conserved. There is a force between any two objects there are in the universe fg = g (m1xm2)/(d^2) M1 and m2 = the masses of the 2 objects. The bigger the number on the bottom the smaller the force and vice versa (the number on the bottom d is the distance between the centres of the two objects) Force causes acceleration and its going downward. Without air everything falls at the same speed.