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Answer (a) Work done, $W=Fs\cos\theta$ where $F$ is the force applied, $s$ is the displacement and $\theta$ is the angle between force and displacement. This shows that work done is independent of time. According to our question, both forces are applied and the direction of movement of the box is the same.
Use the work equation to calculate the work done, a force value, or a displacement value. Includes 6 problems.
Review the units of work, energy, force, and distance. Use the equations for mechanical energy and work to show what is work and what is not. Make it clear why holding something off the ground or carrying something over a level surface is not work in the scientific sense.
1. _____ is done when an object moves through a distance because of a _____ acting upon the object. 2. When calculating work, you should use the formula: work = force X _____. 3. The SI unit for work is the _____. It is represented by the letter _____. C. Work Problems: 4.
Example 2: Calculating Power Using Work Done. It takes 50 \text { kJ} of work for a crane to lift a storage container and place it on top of another. The storage container is in the air for 50 \text { s}, calculate the power of the crane. State the units of your answer.
Work done means energy transferred. So, when work is done, energy is transferred from one energy store to another energy store. Example. The boy lifts the box from the ground to above his head, so chemical potential energy store is transferred mechanically to gravtiational potential energy store.
4 sie 2024 · 60 calculation questions for Work done, with FULL WORKING OUT AND ANSWERS. There is a fully worked example question for each variable. This worksheet is split into 5 sections: Section A: 10 questions to calculate Work done. Section B: 10 questions to calculate Force. Section C: 10 questions to calculate Distance. Section D: 15 mixed questions.
