Question

Define kinetic energy? Write an expression for kinetic energy? Write the SI unit of kinetic

energy?​

Answer 1

Explanation:

The International Standard Unit of Kinetic Energy is Joules(J). (J = kg. MATHEMATICAL EXPRESSION FOR KINETIC ENEGRY. Kinetic Energy = 1/2 * m * where, m is the mass of the object and v is the velocity with which the object is moving

What is Kinetic Energy?

The kinetic energy of an object is the energy that it possesses due to its motion. Kinetic energy definition is given as:

The energy of an object because of its motion or the energy gained by an object from its state of rest to motion.

How is kinetic energy different from potential energy?

Kinetic energy is due to an object’s motion whereas potential energy is due to an object’s position or state. Velocity is an important factor while calculating an object’s kinetic energy. However, velocity has nothing to do with an object’s potential energy.

Answer 2

Answer:

energy which a body possesses by virtue of being in motion.

kinetic Energy

The energy of a body due to its motion is called Kinetic energy. The kinetic energy of a moving body is measured by the amount of work it can do before coming to rest . Mass of body is doubled ,its kinetic energy also gets doubled and if the mass of a body is halved, its kinetic energy also gets halved. kinetic energy of a body is directly proportional to the square of its velocity . If the velocity of a body is doubled the kinetic energy becomes four times and if the velocity of a body is halved then its kinetic energy becomes one - fourth . The kinetic energy of a body depends upon its mass and velocity . Therefore heavy body moving with high velocities have both kinetic energy than slowing moving bodies of small mass. this is the reason why a blacksmith uses heavier hammer than the one used by a goldsmith .

Kinetic Energy =

\frac{1}{2} \times m \times {v}^{2}

2

1

×m×v

2

From this mathematical formula, It is clear that :

The kinetic energy of a body is directly proportional to the mass of the body.

The kinetic energy of a body is directly proportional to the square of velocity of the body or square of the speed of the body.

SI unit for kinetic energy is Joules.

Explanation:

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