A 50.0-kg wolf is running at 10.0 m/sec. What is the wolf's kinetic energy?
A) 5 J
B) 500 J
C) 5000 J
D) 250 J
E) 2500 J
(1/2) m v^2 = 25 * 100 = 2500 Joules
To find the wolf's kinetic energy, you need to use the formula:
Kinetic Energy = 0.5 * mass * velocity^2
First, let's find the wolf's kinetic energy:
Mass of the wolf = 50.0 kg
Velocity of the wolf = 10.0 m/sec
Substituting the values into the formula:
Kinetic Energy = 0.5 * 50.0 kg * (10.0 m/sec)^2
Now, let's do the calculations:
Kinetic Energy = 0.5 * 50.0 kg * (100 m^2/sec^2)
Kinetic Energy = 0.5 * 50.0 kg * 100 m^2/sec^2
Kinetic Energy = 2500 kg m^2/sec^2
Therefore, the wolf's kinetic energy is 2500 J (joules).
So, the correct answer is E) 2500 J.
To calculate the kinetic energy, you can use the formula:
Kinetic Energy = 1/2 * mass * velocity^2
Given:
Mass (m) = 50.0 kg
Velocity (v) = 10.0 m/s
Substituting the values into the formula:
Kinetic Energy = 1/2 * 50.0 kg * (10.0 m/s)^2
Kinetic Energy = 1/2 * 50.0 kg * 100.0 m^2/s^2
Kinetic Energy = 2500 J
Therefore, the wolf's kinetic energy is 2500 J.
The correct answer is E) 2500 J.