A car is traveling with speed v0 when it begins to speed up at a rate of Δv every second. After t1 seconds, the car travels with zero acceleration for t2 seconds. Which of the following is a correct expression for the displacement of the car during this motion?

d = Δv(t2-t1)

Explanation:

Speed is defined as the change of displacement with respect to time. It is expressed as shown;

Speed = change in displacement/change in time

Δv = d/Δt

d = Δv*Δt

d = ΔvΔt

Δt = t2-t1

d = Δv(t2-t1)

Δv is the change in rate of speed

Δt = change in time

The correct expression for the displacement of the car during this motion is d = Δv(t2-t1)

The displacement of the car at the given period is

The given parameters;

The displacement of the car is calculated from the relationship between average velocity and displacement as shown below;

Thus, the displacement of the car at the given period is

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