Question

An electric car has a mass of 2,000 kg. the engine is producing a force of 3,500 N to move the vehicle forward,but it must overcome air friction equal to 500 N

What is the acceleration of the electric car m/s2?
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Answer 1

1.5 m/s²

Step-by-step explanation:

From the diagram,

F-F' = ma............... Equation 1

Where F = Forward force of the vehicle, F' = Frictional force, m = mass of the electric car, a = acceleration of the car.

make a the subject of the equation

a = (F-F')/m........... Equation2

Given: F = 3500 N, F' = 500 N, m = 2000 kg

Substitute into equation 2

a = (3500-500)/2000

a = 3000/2000

a = 1.5 m/s²