Question

Calculate the kinetic energy of a body of mass 2 kg moving with a velocity of 1 m/s.​

Answer 1

Explanation:

K.E = $\frac{1}{2} m {v}^{2}$

=$\frac{1}{2} 2 × {1}^{2}$

=1J

Answer 2

Answer:

1 Joule.

Explanation:

Given:-

Mass = 2kg

Velocity = 1m/s

To find:-

Kinetic energy = ?

Formula Used :-

$\bf \implies kinetic \ Energy = \dfrac{1}{2} mv^2$

Procedure:-

The formula used to calculate kinetic energy is:-

$\sf \implies kinetic \ Energy = \dfrac{1}{2} mv^2$

We know ,

Mass as 2kg, and velocity as 1m/s.

Now, putting known values into formula:-

$\sf \implies kinetic \ Energy = \dfrac{1}{2} \times 2(1)^2$

$\implies \sf kinetic \ Energy = \dfrac{1}{2} \times 2 \times 1 \times 1$

On solving we get:-

Kinetic Energy = 1 Joule

What is kinetic Energy ?

Kinetic energy is a scalar quantity. It basically possesses by virtue of being in motion.