A jogger (60 kg) is running 3 m/s down the road.  What is his kinetic energy?

The kinetic energy (KE) of an object can be calculated using the formula:

KE = 1/2 * m * v^2

where: m is the mass of the object (in kg) v is the velocity of the object (in m/s)

Step 1: Identify the mass (m) and velocity (v) from the problem. The mass (m) of the jogger is 60 kg and the velocity (v) is 3 m/s.

Step 2: Substitute the values into the formula:

KE = 1/2 * 60 kg * (3 m/s)^2

Step 3: Calculate the velocity squared:

(3 m/s)^2 = 9 m^2/s^2

Step 4: Substitute this value back into the formula:

KE = 1/2 * 60 kg * 9 m^2/s^2

Step 5: Calculate the kinetic energy:

KE = 270 Joules

So, the kinetic energy of the jogger is 270 Joules.