Question

If a body of mass 15 kg moves at a speed of 15 m/s kinetic energy of body is ..

Answer 1

Answer:

Explanation:

Kinetic energy= 1/2 M v^2

Here kinetic energy= 1/2 ×15×15×15

= 1687.5 Joules

Answer 2

Answer :

Given -

• Mass = 15 kg
• Speed = 15 m/s

To Find -

• Kinetic energy ?

Solution -

Kinetic Energy = ½mv²

Now, Calculating Kinetic energy :

⇒ ½*15*(15)²

⇒ ½*15*225

⇒ 7.5*225

⇒ 1,687.5 J

Hence, Kinetic energy of the body = 1,687.5 J.

Some Additional Information -

• Energy possessed by a body due to change in position of shape is called potential energy.

• Energy possessed by a body due to change in motion is called Kinetic energy.

• PE = mgh

• KE = ½mv²