jessandgenmore
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  • 14-05-2020
  • Physics
contestada

Q7:
A 4 kg toy is lifted off the ground and falls at 3 m/s. What is the toy's energy?

Respuesta :

PhantomWisdom PhantomWisdom
  • 19-05-2020

Answer:

The toy's energy is 18 J.

Explanation:

We have, a 4 kg toy is lifted off the ground and falls at 3 m/s. It is required to find toy's energy.

The toy will have kinetic energy due to its motion. The energy is given by :

[tex]E=\dfrac{1}{2}mv^2\\\\E=\dfrac{1}{2}\times 4\times 3^2\\\\E=18\ J[/tex]

So, the toy's energy is 18 J.

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