A 1690 kg car travels at a speed of 13.5 m/s. What is its kinetic energy? Assume that air resistance is negligible.
Question
A 1690 kg car travels at a speed of 13.5 m/s. What is its kinetic energy? Assume that air resistance is negligible.
Solution
To calculate the kinetic energy of the car, we can use the formula for kinetic energy which is KE = 1/2 * m * v^2, where m is the mass of the car and v is its speed.
Step 1: Identify the mass (m) and the speed (v). In this case, m = 1690 kg and v = 13.5 m/s.
Step 2: Substitute the values into the formula. So, KE = 1/2 * 1690 kg * (13.5 m/s)^2.
Step 3: Calculate the kinetic energy.
KE = 0.5 * 1690 kg * (13.5 m/s)^2 = 0.5 * 1690 kg * 182.25 m^2/s^2 = 154,051.25 Joules.
So, the kinetic energy of the car is 154,051.25 Joules.
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