Answer :
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.
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:
- Square the speed: (65 m/s)² = 4225 m²/s²
- Multiply the mass by the squared speed: 5000 kg * 4225 m²/s² = 21125000 kg·m²/s²
- Divide by 2: 21125000 kg·m²/s² / 2 = 10562500 J
Thus, the kinetic energy of the body is 10562500 Joules (J).
