PHYS124 Lecture 1: Section 5 notes.pdf

• School: University of Alberta
• Department: Physics
• Course: PHYS124
• Professor: Al Meldrum

Document Summary

Calculate the work done by gravity and the change in pe for a 100g apple falling a distance of 10m. Calculate the work done by gravity, the final speed, and the change in. True or false: a rocket is on the launch pad. When it is launched, the kinetic energy of the rocket increases. The work done by the rocket"s motor is equal to the change in the kinetic energy. Two apples fall from the same branch of a tree, a heavy one and a light one. A water slide is constructed so that swimmers starting from rest at the top of the slide leave the end of the slide traveling horizontally. A person hits the water 5m from the end of the slide in a time 0. 5s after leaving the slide. A 3 kg model rocket is launched straight up. It aches a maximum height of 100 m. air resistance does -800 j of work on the rocket.