PHYS 1301W Lecture 1: Impulse and Momentum

A 20g bullet traveling at 150m/s buries itself in a 4.0kg pendulumhanging on a 3.0m long string which makes the pendulum swing upwardin an arch. Determine the height of the pendulum'sdisplacement.

A 2.0-kg mass swings at the end of a lightstring (length=3.0m). Its speed at the lowest point on its circularpath is 6.0m/s. What is the kinetic energy at an instant when thestring makes an angle of 50^oWiththe vertical?

Four masses are positioned in the xy-plane as follows:300g at (x=0, y=2.0m),500 g at (-2.0m, -3.0m), 700g at (50cm, 30cm), and 900g at (-80cm, 150cm). Find their center of mass. Show all work in detail