Acar moves with constant velocity along a straight road. its position is x1 = 0 m at t1 = 0 s and is x2 = 80 m at t2 = 5.0 s . answer the following by considering ratios, without computing the car's velocity. part a what is the car's position at
t = 2.5 s ?
part b what will be its position at
t = 15 s ?

Part A)   x=40m at t= 2.5s

Part B)    x=240m at t=15 s

Explanation:

Data:

x₁=0 , t₁=0

x₂=80m,  t₂=5 s

t₃= 2.5 s

t₄= 15 s

problem development

We set the ratios x / t:

Part A)

x₃=16*2.5

x₃=40m

Part B)

x₄=16*15

x₄=240m

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