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In this lesson, we will learn how to use the work--energy principle to solve problems involving a moving particle under the action of a variable force.

Q1:

The figure shows the action of a variable force ๐น on a body of mass ๐ kg as it moves a distance ๐ . Given that ๐น is measured in newtons, and ๐ is measured in metres, find the change in the bodyโs kinetic energy between ๐ = 0 m and ๐ = 6 m .

Q2:

Q3:

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