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LenKa [72]
3 years ago
5

A toy plane with a mass of 1.5 kg is flying in the air at 8.0 m/s. What is its kinetic energy?

Physics
2 answers:
natita [175]3 years ago
7 0

Answer:

KE=48J

Explanation:

You use the equation:

KE=1/2mv^2

KE=1/2(1.5kg)(8.0m/s)^2

KE=48J

Nikolay [14]3 years ago
5 0

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 ,

\boxed{\red{\bf Energy_{Kinetic}=\dfrac{1}{2}mv^2}}

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 .

<em><u>Hence</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>Kineti</u></em><em><u>c</u></em><em><u> energy</u></em><em><u> of</u></em><em><u> the</u></em><em><u> </u></em><em><u>plane</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>4</u></em><em><u>8</u></em><em><u>J</u></em><em><u>o</u></em><em><u>u</u></em><em><u>l</u></em><em><u>e</u></em><em><u>s</u></em><em><u>.</u></em>

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