murrayjayden030653 murrayjayden030653
  • 21-11-2020
  • Physics
contestada

A car moving at a speed of 20m/s has a kinetic energy of 300,000 J what’s the cars mass

Respuesta :

Stephen46
Stephen46 Stephen46
  • 22-11-2020

Answer:

1500 kg

Explanation:

The mass of the car can be found by using the formula

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

From the question we have

[tex]m = \frac{2 \times 300000}{ {20}^{2} } = \frac{600000}{400} = \frac{6000}{4} \\ [/tex]

We have the final answer as

1500 kg

Hope this helps you

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