Respuesta :
Answer:
KE=48J
Explanation:
You use the equation:
KE=1/2mv^2
KE=1/2(1.5kg)(8.0m/s)^2
KE=48J
Given : A toy plane has a mass of 1.5kg . It is flying in air at a speed of 8m/s .
To Find : The Kinetic energy of the plane .
Solution : The mass of the toy plane is 1.5kg and Velocity is 8.0 m / s . So we know the formula to find the kinetic energy as ,
[tex]\boxed{\red{\bf Energy_{Kinetic}=\dfrac{1}{2}mv^2}}[/tex]
On substituting the respective values,
⇒ KE = ½mv².
⇒ KE = ½ × 1.5 kg × (8 m/s)².
⇒ KE = ½ × 1.5 kg × 64m²/s² .
⇒ KE = 48 J .
Hence the Kinetic energy of the plane is 48Joules.
