Kinetic energy

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Applied force *F* = N

Displacement *s* = m

Work done by the force = *Fs* = J

{{v.toFixed(2)}} m s^{–1}

Mass of box *m* = kg

Initial velocity *u* = m s^{–1}

Final velocity *v* = m s^{–1}

Change in KE = *m*(*v*^{2} – *u*^{2}) = J2

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