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4. Work and Energy
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Q6 of 146 Page 145

Is energy a vector quantity?

Energy is a scalar. If it were a vector then conservation of energy would fail during uniform circular motion in a radial potential and many other situations.


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4

Define 1 joule of work.

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What is the condition for a force to do work on a body?

7

What are the units of (a) work, and (b) energy?

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What is the work done against gravity when a body is moved horizontally along a frictionless surface?

Questions · 146
4. Work and Energy
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