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Natali5045456 [20]
3 years ago
9

A lightweight electric car is powered by ten 12-V batteries. At a speed of 100 km/h, the average frictional force is 1500 N. Wha

t must be the power of the electric motor if the car is to travel at a speed of 100 km/h?
Engineering
1 answer:
Aleksandr [31]3 years ago
6 0

Answer:41.67kW

Explanation: a) power = force * velocity

Convert km/hr to m/s=1000m/(60×60s)

=1000/3600

P=F×vel

Power =1500×100× 1000/3600

=1500×100×5/18

=41,666.67W

=41.67kW

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