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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.
- Legacy Problem Set
Work, Energy and Power: Problem Set. Problem 1: Renatta Gass...
- Legacy Problem Set
PF1.5: WORK, ENERGY AND POWER. Energy exists in many different forms, eg, kinetic energy Ek, potential energy Ug, electrical energy, and elastic (or spring) energy Es. A fundamental principle of nature is that energy cannot be created or destroyed, only transformed or transferred.
1. _________________________________ is the rate at which work is done. 2. When calculating power, you should use the formula P = _________________ divided by _____________. In this formula, “P” stands for power, ____ stands for work, and _____ for time. 3.
2 Worksheet: Work, energy and power. QUESTION 1. 1.1 A girl with mass 60 kg slides 3 m down an inclined plane as shown in the picture. Calculate the work done on the girl by gravity. Calculate the work done on the girl by the normal force. 1.2 A block (5 kg) is pulled by a force of 60 N at an angle of 30 to the ground. The block moves 3,25 m.
Work, Energy and Power: Problem Set. Problem 1: Renatta Gass is out with her friends. Misfortune occurs and Renatta and her friends find themselves getting a work out. They apply a cumulative force of 1080 N to push the car 218 m to the nearest fuel station. Determine the work done on the car. Audio Guided Solution. Show Answer. Problem 2:
(a) How much work is done in 25 s? (b) What power is being used? (c) What force of friction is acting on the object? 23. How much electrical energy (in kilowatt-hours) would a 60.0 W light bulb use in 60.0 days if left on steadily? 24. A power mower does 9.00 x 105 J of work in 0.500 h. What power does it develop? 25. How long would it take a 500.
The Basics of Work, Energy, and Power Objectives: 1. To describe the conditions under which positive and negative work are done and to use the work equation to calculate the amount of work done. 2. To define potential energy, to identify the two forms and the variables that affect the
