Question

Calculate KE of body with mass 5000Kg and speed 65m/s.

Answer 1

The KE of a body having mass 5000 kg and speed of 65 m/s is 10562500 joules.

Given mass = 5000 kg, speed = 65 m/s

Using the formula for kinetic energy:

KE = ½(mv²)

KE = ½ × 5000 kg × (65 m/s)²

KE = ½ × 5000 × 4225

KE = ½ × 21125000

KE = 10562500 J

Therefore, the kinetic energy of the body is 10562500 Joules.

Answer 2

To find the kinetic energy of a 5000 kg body moving at 65 m/s, we use KE = 1/2 mv². The kinetic energy calculates to 10562500 Joules.

To calculate the kinetic energy of a body, we use the formula:

KE = 1/2 mv²

Where:

• m is the mass of the body
• v is the speed of the body

Given:

• m = 5000 kg
• v = 65 m/s

Step-by-step calculation:

1. Square the speed: (65 m/s)² = 4225 m²/s²
2. Multiply the mass by the squared speed: 5000 kg * 4225 m²/s² = 21125000 kg·m²/s²
3. Divide by 2: 21125000 kg·m²/s² / 2 = 10562500 J

Thus, the kinetic energy of the body is 10562500 Joules (J).