Question

Define kinetic energy. Give its unit and dimensional formula and mention works by usingit​

Answer 1

Answer:

In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.

⇒ Kinetic energy = [Mass × Velocity2] × 2-1. Or, K.E = [M1 L0 T0] × [M0 L1 T-1]2 = [M1 L2 T-2] Therefore, Kinetic Energy is dimensionally represented as [M1 L2 T-2].

HOPE IT HELPS YOU

MARK ME AS BRAINLIEST

Answer 2

Kinetic Energy:

• It is a type of Mechanical Energy in an object by the virtue of its movement.

• The mathematical formulas is :

$\boxed{ \bf \: KE = \dfrac{1}{2} m {v}^{2} }$

• Here, 'm' is mass and 'v' is velocity.

Now, SI UNIT OF KINETIC ENERGY is Joules (J) or kg m²/s².

The dimensional formula is :

$\boxed{ \bf \: [KE] = [M{L}^{2} {T}^{ - 2} ]}$

• As per Work-Energy Theorem, the work done by all the forces on the object will be equal to the change in kinetic energy of the object.

Hope It Helps.