Question

a body of mass 2 kg is moving with a speed of 20 m/s .find the kinetic energy

Answer 1

Kinetic energy= 1/2×mv^2
here m=2kg, v=20m/s
K.E.= 1/2×2×20^2
=400J

Answer 2

$\huge\textbf{Answer :}$


$\huge\textbf{K.E. = 400 J}$



$Solution\::$


According to question we have given;

Mass of the body (m) = 2 kg

Velocity of the body (v) = 20 m/s

We have to find Kinetic Energy = ?

Now,

Kinetic Energy = ½ mv²

= ½ × 2 × (20)²

= ½ × 2 × 400

= 400 joule (J)

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