Velocity and Acceleration

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

Estimated8 minsto complete
%
Progress
Practice Velocity and Acceleration

MEMORY METER
This indicates how strong in your memory this concept is
Progress
Estimated8 minsto complete
%
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=\begin{align*}v =\end{align*} velocity (m/s)

vi=\begin{align*}v_i =\end{align*} initial velocity

vf=\begin{align*}v_f =\end{align*} final velocity

Δv=\begin{align*}\Delta v =\end{align*} change in velocity =vfvi\begin{align*}= v_f - v_i\end{align*}

vavg=ΔxΔt\begin{align*}v_{avg} = \frac{\Delta x}{\Delta t}\end{align*}

a=\begin{align*}a =\end{align*} acceleration (m/s2)\begin{align*}(m/s^2)\end{align*}

aavg=ΔvΔt\begin{align*}a_{avg} = \frac{\Delta v}{\Delta t}\end{align*}

First we must find convert mph to m/s

Δv=\begin{align*}\Delta v =\end{align*} 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?

Notes/Highlights Having trouble? Report an issue.

Color Highlighted Text Notes
Show More

Explore More

Sign in to explore more, including practice questions and solutions for Velocity and Acceleration.
Please wait...
Please wait...