Question

A body of mass 60 kg is moving with a speed 50ms-1 . find its kinetic energy .

Answer 1

here is your answer

given :

mass (m) = 60 kg

speed (v) = 50 m/s

to find : kinetic energy (K.E.)

solution :

K.E. = 1/2mv²

K.E. = 1/2*60*(50)²

K.E. = 30*2500

K.E. = 75,000 kgm/s or Joule

so, the kinetic energy of a body having mass 60 kg moving with speed of 50 m/s will be 75,000 Joule.

Answer 2

Answer:

The kinetic energy of the body is 75000 Joule.

Step-by-step explanation:

Given:-

A body of mass $60$ kg is moving with a speed of $50$ m/s.

To find:-

The kinetic energy of the body.

Step 1 of 1

As we know,

Kinetic energy, K.E = mv²/2 _____ (1)

According to the question,

The mass of the body, m = 60 kg

The speed of the body, v = 50 m/s

Now,

Substitute the values 60 for m and 50 for v in the equation (1) as follows:

Kinetic energy = 60(50)²/2

                         = 30(50)²

                         = 75000 kg m/s or Joule

Therefore, the kinetic energy of the body is 75000 Joule.

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