Michael, whose mass is 80 kg, runs at a speed of 3 m/s. What is his kinetic energy?
To calculate the kinetic energy of an object, we can use the formula:
Kinetic Energy = 0.5 * mass * velocity^2
Given that Michael's mass is 80 kg and his speed is 3 m/s, we can substitute these values into the formula:
Kinetic Energy = 0.5 * 80 kg * (3 m/s)^2
Simplifying the equation:
Kinetic Energy = 0.5 * 80 kg * 9 m^2/s^2
Kinetic Energy = 360 J
Therefore, Michael's kinetic energy is 360 joules.
To calculate the kinetic energy of an object, you can use the formula:
Kinetic Energy = 1/2 * mass * velocity^2
Given that Michael's mass is 80 kg and his speed is 3 m/s, you can substitute these values into the formula to find his kinetic energy:
Kinetic Energy = 1/2 * 80 kg * (3 m/s)^2
First, let's square the velocity:
(3 m/s)^2 = 3 m/s * 3 m/s = 9 m^2/s^2
Now, substitute the value of the squared velocity into the equation:
Kinetic Energy = 1/2 * 80 kg * 9 m^2/s^2
Next, multiply the mass by the squared velocity:
Kinetic Energy = 1/2 * 720 kg * m^2/s^2
Finally, calculate the result:
Kinetic Energy = 360 kg * m^2/s^2
Therefore, Michael's kinetic energy is 360 kg * m^2/s^2.
just use the formula
KE = 1/2 mv^2
Now plug in your numbers