ethancooke420 ethancooke420
  • 19-10-2020
  • Physics
contestada

A cell phone weighing 80 grams is flying through the air at 15 m/s. what is the kinetic energy?

Respuesta :

Stephen46
Stephen46 Stephen46
  • 19-10-2020

Answer:

The answer is 9 J

Explanation:

The kinetic energy of an object can be found by using the formula

[tex]KE = \frac{1}{2} m {v}^{2} \\ [/tex]

where

m is the mass

v is the velocity

From the question

m = 80 g = 0.08 kg

v = 15 m/s

We have

[tex]KE = \frac{1}{2} \times 0.08 \times {15}^{2} \\ = 0.04 \times 225[/tex]

We have the final answer as

9 J

Hope this helps you

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