To calculate the kinetic energy (Ek) of the car, we can use the formula Ek = 1/2mv^2.

Here, m is the mass of the car and v is its speed.

Given in the problem, m = 1000 kg and v = 20 m/s.

Substituting these values into the formula, we get:

Ek = 1/2 * 1000 kg * (20 m/s)^2
= 1/2 * 1000 kg * 400 m^2/s^2
= 200,000 Joules

So, the kinetic energy of the car is 200,000 J. Therefore, the correct answer is D) 200,000 J.

Question

To calculate the kinetic energy (Ek) of the car, we can use the formula Ek = 1/2mv^2.

Here, m is the mass of the car and v is its speed.

Given in the problem, m = 1000 kg and v = 20 m/s.

Substituting these values into the formula, we get:

Ek = 1/2 * 1000 kg * (20 m/s)^2
   = 1/2 * 1000 kg * 400 m^2/s^2
   = 200,000 Joules

So, the kinetic energy of the car is 200,000 J. Therefore, the correct answer is D) 200,000 J.

Knowee AI · Accepted Answer

To calculate the kinetic energy (Ek) of the car, we can use the formula Ek = 1/2mv^2.

Here, m is the mass of the car and v is its speed.

Given in the problem, m = 1000 kg and v = 20 m/s.

Substituting these values into the formula, we get:

Ek = 1/2 * 1000 kg * (20 m/s)^2
   = 1/2 * 1000 kg * 400 m^2/s^2
   = 200,000 Joules

So, the kinetic energy of the car is 200,000 J. Therefore, the correct answer is D) 200,000 J.

Ek = 1/2mv^2 A car with a mass of 1000 kg is traveling at a speed of 20 m/s. What is its kinetic energy?*1 pointA) 1000 JB) 20,000 JC) 100,000JD) 200,000 J