sharonpolnitz sharonpolnitz
  • 25-08-2020
  • Physics
contestada

A 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic
energy?

Respuesta :

asuwafohjames
asuwafohjames asuwafohjames
  • 31-08-2020

Answer:

12.8 J

Explanation:

Kinetic Energy: This can be defined as the energy posses by a body due to its motion. The S.I unit of kinetic energy is Joules(J)

From the question,

Ek = (1/2)mv²........................... Equation 1

Where m = mass of the bird, v = speed of the bird.

Given: m = 0.40 kg, v = 8.0 m/s.

substitute these values into equation 1 above,

Ek = 1/2(0.4)(8²)

Ek = 0.2(64)

Ek = 12.8 J

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