Question

A body of mass 10kg is moving with velocity 4ms.calculate the kinetic energy gained by the body.
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Answer 1

Answer:

$m =10kg$

$v = 4m/s$

$k = \frac{1}{2} mv {}^{2}$

$k = \frac{1}{2} \times 10 \times 4 {}^{2}$

$k = 5 \times 16$

$k = 80joules$

Answer 2

Answer:

80 joules

Explanation:

1/2×mv^2=0.5×10×4^2=80joules