Question

A Tesla Model 3 with 2 people in it has a mass of 2000 kg. It...

A Tesla Model 3 with 2 people in it has a mass of 2000 kg. It makes a journey of 130 km in 1.93 hours traveling at a constant speed. A VW Beetle with a mass of 1500 kg makes the same journey in 1.18 hours, also traveling at a constant speed. Which vehicle had a greater average power over the course of this journey?

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Answer #1

Speed of the Tesla is

or

thus the kinetic energy of the Tesla is

which gives us

and the power is

Similarly in VW case

thus

and power is

which gives us

We can clearly see that   , thus VW has greater average power than Tesla model 3

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