PHY131H1 Study Guide - Midterm Guide: Weighted Arithmetic Mean, Headon, Net Force

• School: UTSG
• Department: Physics
• Course: PHY131H1
• Professor: Wilson and Harlow

Document Summary

Lecture 12 was the last lecture taught by professor wilson. It was first recognized as an attractive force by newton. R , each object attracts the other with a force. R is the radius measured from the centers of two objects experiencing a gravitational attraction. While living on the surface of earth with a radius . By using the flat earth approximation , an object under a trajectory path is represented as the shape of a parabola (which we have been using throughout the course) A projectile path near the surface of the earth means that the direction of gravity is pointing vertically downwards. In reality, by viewing the path near the surface of earth, the force of gravity is pointing towards the center of the earth. This occurs when the initial speed (launch speed) . Of an object is sufficiently large and the curve between the trajectory and the earth are aligned/parallel with respect to each other.