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Velocity and Acceleration

The speed and direction of a moving object and how that rate changes over time.

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Coaster Calculations

Have you ever calculated the velocity of a rollercoaster you rode? The odds are that the rush of the rollercoaster left you unable to do so. So nows your chance

This rollercoaster went from 0-135 mph in 3.15 seconds

The equations you can use are 

v= velocity (m/s)

vi= initial velocity

vf= final velocity

Δv= change in velocity =vfvi

vavg=ΔxΔt

a= acceleration (m/s2)

aavg=ΔvΔt

First we must find convert mph to m/s 

Δv= 135 mph=60.44 m

so (60.44/3.15)=19.16m/s

Therefore the average velocity is 19.16

Creative Questioning:

1. How would you change the outcome of this question?(which factor would you have to change?

2.What is the relation between velocity and time?

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