Question

A body of mass 4 Kg is
moving with velocity 15 m/s. Its
Kinetic energy is :- *

It's urgent please ​

Answer 1

Answer:

Kinetic energy is 450 joules.

Explanation:

Given,

Mass of the body = 4kg

Velocity = 15m/s

Finding it's K. E. (Kinetic energy)

K. E. is = ½ • m • v²

Where,

• ‘m’ denotes mass of the body i.e., 4kg.
• ‘v’ denotes velocity of the body.

So, the kinetic energy produced by the body is :

→ ½ • 4 • (15)²

→ 2 • 225

→ 450 joules

Units :

• Mass is measured in kg units.
• Velocity is taken in m/s (metre per second)
• S. I. unit of energy is joules.

Answer 2

Answer:

Answer:

Kinetic energy is 450 joules.

Explanation:

Given,

Mass of the body = 4kg

Velocity = 15m/s

Finding it's K. E. (Kinetic energy)

K. E. is = ½ • m • v²

Where,

‘m’ denotes mass of the body i.e., 4kg.

‘v’ denotes velocity of the body.

So, the kinetic energy produced by the body is :

→ ½ • 4 • (15)²

→ 2 • 225

→ 450 joules

Units :

Mass is measured in kg units.

Velocity is taken in m/s (metre per second)

S. I. unit of energy is joules.