A car of mass 1000 kg is moving at a speed of 15 m/s. What is the kinetic energy

A car of mass 1000 kg is moving at a speed of 15 m/s. What is the kinetic energy of the car?

A car of mass 1000 kg is moving at a speed of 15 m/s. What is the kinetic energy of the car?

Correct Answer: 11250 J

Step 1: Identify the mass of the car. The mass (m) is given as 1000 kg.
Step 2: Identify the speed of the car. The speed (v) is given as 15 m/s.
Step 3: Write down the formula for kinetic energy (KE). The formula is KE = (1/2)mv².
Step 4: Substitute the values of mass and speed into the formula. This gives KE = (1/2)(1000 kg)(15 m/s)².
Step 5: Calculate the square of the speed. (15 m/s)² = 225 m²/s².
Step 6: Multiply the mass by the square of the speed. 1000 kg * 225 m²/s² = 225000 kg·m²/s².
Step 7: Multiply the result by 1/2. (1/2) * 225000 kg·m²/s² = 112500 J.
Step 8: State the final answer. The kinetic energy of the car is 112500 Joules (J).

Kinetic Energy – Kinetic energy is the energy that an object possesses due to its motion, calculated using the formula KE = (1/2)mv², where m is mass and v is velocity.