A fly with a mass of 0.0025 kg flies at a rate of 20.0 m/s. What is the kinetic energy of the fly?

0.050 J
0.025 J
0.50 J
1.0 J

KE = 0.5mV^2 = 0.5 * 0.0025 * (20)^2 =

0.5 Joules.

To find the kinetic energy of the fly, we can use the formula:

Kinetic Energy (KE) = 1/2 * mass * velocity^2

Given:
Mass of the fly (m) = 0.0025 kg
Velocity of the fly (v) = 20.0 m/s

Now, let's substitute these values into the formula:

KE = 1/2 * 0.0025 kg * (20.0 m/s)^2
= 1/2 * 0.0025 kg * (400 m^2/s^2)
= 0.00125 kg * 400 m^2/s^2
= 0.5 J

Therefore, the kinetic energy of the fly is 0.5 J.