When a golf ball is hit, it travels at 39 meters per second. The mass of a golf ball is 0.045 kg. What is the kinetic energy of the golf ball?
The kinetic energy of an object is calculated using the formula:
KE = 0.5 * m * v^2
where
KE = kinetic energy
m = mass of the object
v = velocity of the object
Plugging in the values given:
m = 0.045 kg
v = 39 m/s
KE = 0.5 * 0.045 kg * (39 m/s)^2
KE = 0.5 * 0.045 kg * 1521 m^2/s^2
KE = 34.22 Joules
Therefore, the kinetic energy of the golf ball is 34.22 Joules.