Question

calculate the kinetic energy of body of mass 3kg moving with 12m/ sec?​

Answer 1

Explanation:

K.E.

$= \frac{1}{2} m {v}^{2}$

$= \frac{1}{2} \times 3 \times {12}^{2}$

$= \frac{1}{2} \times 3 \times 144$

$= 3 \times 72 \\ = 216$

Answer 2

Answer:

216 J

Explanation:

Kinetic Energy = 1/2 ( ,product of mass and velocity's square)

K.E. =1/2 (mv^2)

m = 3kg. v = 12m/sec

K.E. = 1/2 ( 3*12*12)

K.E. = 144*3/2

K.E. = 216 kg•m/sec

K.E. = 216 Joules

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