Question

Price Problems 3:
A dog of mass 16 kg is running at a constant speed of 12 ms Calculate the kinetic energy of
the dog
(1152 J]
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Answer 1

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$We \: know \: that \: kinetic \: energy \: = \frac{1}{2} {mv}^{ \: 2}$

$Where \: , \: m \: = mass \: of \: the \: body$

$And \: ,v = velocity \: of \: the \: body$

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$Here \: \: "m "\: = \: 16 \: kg$

$and \: "v" \: = 12 \: m/s$

$Now \: , \: kinetic \: energy \: = \frac{1}{2} {mv}^{2}$

$= \frac{1}{2} \times 16 \: \times \: {(12)}^{ \: 2}$

$= 8\: \times \: 144$

$= 1152 \: Joules$

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