the tesla roadster electric car is rated at 16.8kw how much energy does it use during a one hour drive answer in mj

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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

(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

[tex]6.05\cdot 10^7 J[/tex]

Explanation:

Energy is related to power by:

[tex]E=Pt[/tex]

where P is the power and t is the time. In this problem, we have:

[tex]P=16.8 kW=16800 W[/tex]

[tex]t=1 h=3600 s[/tex]

So, the energy used in one hour is

[tex]E=(16800 W)(3600 s)=6.05\cdot 10^7 J[/tex]

[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]