What is the kinetic energy of a 19 kg dog that is running at a speed of 7.4 m/s (about 17 mi/h)?
KE= 1/2 mass*velocity^2
109.2
To calculate the kinetic energy of an object, you can use the formula:
Kinetic Energy = 1/2 * mass * velocity^2
In this case, the mass of the dog is given as 19 kg, and the velocity at which it is running is given as 7.4 m/s.
To solve the equation, follow these steps:
Step 1: Square the velocity.
In this case, 7.4 m/s squared is 54.76 m^2/s^2.
Step 2: Multiply the squared velocity by half of the mass.
Half of the mass is 19 kg divided by 2, which equals 9.5 kg. Multiplying this by 54.76 m^2/s^2 gives us 521.42 kg m^2/s^2.
The kinetic energy of the dog running at a speed of 7.4 m/s is approximately 521.42 kg m^2/s^2.