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The Tesla Roadster electric car is rated at 16.8kW. How much energy does it use during a one hour drive? Answer in MJ

Respuesta :

AL2006

(16.8 kW) means (16,800 joules/second)

Energy in 1 hour = (1 hour) x (16,800 J/s) x (3,600 s/hour)

Energy = (16,800 x 3,600) J

Energy =  60,480,000 Joules

Energy = 60.48 MJ

Answer:

[tex]E = 60.5 MJ[/tex]

Explanation:

As we know that power is defined as rate of energy

So we will have

[tex]P = \frac{E}{t}[/tex]

so we will have

[tex]E = P \times t[/tex]

[tex]P = 16.8 kW[/tex]

[tex]t = 1 hour[/tex]

[tex]t = 3600 s[/tex]

now we have

[tex]E = (16.8 \times 10^3)(3600)[/tex]

[tex]E = 60.5 MJ[/tex]

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