If a 35 kg zombie runs at a speed of 3.0 m/s. What is the zombie's kinetic energy?
a. 315 J
b. 105 J
c. 53 J
d. 158 J
The formula to calculate kinetic energy is:
Kinetic Energy = (1/2) * mass * velocity^2
Plugging in the given values:
Mass = 35 kg
Velocity = 3.0 m/s
Kinetic Energy = (1/2) * 35 kg * (3.0 m/s)^2
= (1/2) * 35 kg * 9.0 m^2/s^2
= 0.5 * 35 kg * 9.0 m^2/s^2
= 0.5 * 35 * 9 J
= 157.5 J
Rounding to the nearest whole number, the zombie's kinetic energy is approximately 158 J.
Therefore, the answer is d. 158 J.