What is the kinetic energy of a 14 kg dog that is running at a speed of 9.0 m/s (about 20 mi/h)
KE=(1/2)*(mass in kg)*(acceleration in m/s)^2
To determine the kinetic energy of an object, you can use the formula:
Kinetic Energy (KE) = (1/2) * mass * velocity^2
In this case, the mass of the dog is given as 14 kg and the velocity is given as 9.0 m/s. Using the formula, you can plug in these values to find the answer.
KE = (1/2) * 14 kg * (9.0 m/s)^2
To solve the equation, follow these steps:
Step 1: Square the velocity.
9.0 m/s * 9.0 m/s = 81.0 m^2/s^2
Step 2: Multiply the squared velocity by the mass and divide by 2.
(1/2) * 14 kg * 81.0 m^2/s^2 = 567.0 kg * m^2/s^2
Therefore, the kinetic energy of the 14 kg dog running at a speed of 9.0 m/s is 567.0 kilogram-meter squared per second squared (kg * m^2/s^2).