Respuesta :
Answer:
The correct answer is 12.8 J.
Step-by-step explanation:
To solve this problem, we must remember how to calculate the kinetic energy of an object.
The kinetic energy is represented by the formula K = 1/2 * m * v^2, where m represents the mass of the object and v represents the speed or velocity of the object. If we plug in the given values into the formula, we get:
K = 1/2 * m * v^2
K = (1/2) * (0.40) * (8.0)^2
Our first step is to square the velocity. After doing this step, we get the following:
K = (1/2) * (0.40) * (64)
Finally, we can perform the multiplication, to get:
K = 12.8
The unit for kinetic energy is joules, so the correct answer is 12.8 J.
Hope this helps!
Kinetic energy is the energy due to motion of an object
The kinetic energy of the bird is 12.5 joules
Reason:
The known parameter are;
The mass of the bird, m = 0.50 kg
The speed of the bird, v = 8.0 m/s
Required:
To find the kinetic energy of the bird
Solution:
[tex]Kinetic \ energy = \dfrac{1}{2} \cdot m \cdot v^2[/tex]
Therefore;
[tex]The \ kinetic \ energy \ of \ the \ bird = \dfrac{1}{2} \times 0.40 \ kg \times (8.0 \ m/s)^2 = 12.8 \ J[/tex]
The kinetic energy of the bird is 12.8 J
Learn more about kinetic energy here:
https://brainly.com/question/23503524
