A hummingbird weighing 2 g reaches a speed of 180 km / h during flight. Determine the energy of movement of this bird
| December 8, 2020 | education
E = (m * V ^ 2) / 2
E kinetic energy
m mass
V speed
convert m to kilograms, m = 2 grams = 0.002 kg
we translate V into m / s, V = 180 km / h = (180 * 1000) / 3600 = 50 m / s
E = (0.002 kg * 50 m / s ^ 2) /2=2.5 J
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