Question

Calculate the kinetic energy possessed by a body of mass 30 kg moving with a velocity of

10 m/s. ​

Answer 1

Answer:

Here, speed(v) = 10 m/s

mass(m) = 30 kg

Therefore, kinetic energy (k.e.) = 1/2*30*10²

=1500 J

Answer 2

Given:

• The mass of the body = 30 Kg
• The velocity of the body = 10 m/s

To Find:

• The kinetic energy of the body.

Solution:

The formula to find kinetic energy is given by,

K.E = (m×$v^2$)/2 → {equation 1}

Where "m" is the mass, and "v" is the velocity.

On substituting the given values in equation 1 we get,

⇒ K.E = (30×10×10)/2 {multiplying the terms in bracket}

⇒ K.E = 3000/2 {dividing the terms}

⇒ K.E = 1500 J

∴ The kinetic energy of the body = 1500 J