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Use work and energy principles to calculate a speed or a height or an energy value for a very complex scenario. Some problems involve elastic potential energy. Includes 8 problems.
This collection of problem sets and problems target student ability to use energy principles to analyze a variety of motion scenarios.
Work, Energy and Power Q1. In the sport of curling, two teams of 'curlers' take turns sliding polished granite stones across an ice surface towards a circular target marked on the ice. A stone of mass 19.6 kg is accelerated uniformly for 1.25 s before being released by a curler.
In this chapter, we will learn to solve problems regarding the motion of a particle by considering its energy. This chapter is split up into three parts: In the first, we will discuss kinetic and gravitational potential energies and learn about the idea of “work done”.
This test covers Work, mechanical energy, kinetic energy, potentialenergy (gravitational and elastic), Hooke’s Law, Conservation of Energy, heat energy, conservativeand non-conservative forces, with some problems requiring a knowledge of basic calculus.
Use the work-energy principle to calculate the speed of the block after the 2,60 m. 1.5 A film star in a car (together 720 kg) drives 4,8 m down an inclined plane as indicated in the picture. She starts from rest. The car experiences a frictional force of 23 N. and the engine exerts a force of 200 N.
The vehicle starts from rest at A and is hauled up to B by a motor. It takes 15.0 S to reach B, at which point its speed is negligible. Complete the box in the diagram below, which expresses the conservation of energy for the journey from A to B. Useful work done by motor. .................................
