Velocity [Distance, Time]

The Average Velocity calculator computes the velocity (V) based on the change in position (Δx) and the change in time (Δt).

INSTRUCTIONS:  Choose your units for length (e.g. feet or meters) and time (e.g. minutes or days) and enter the following:

• (Δx)  Change in Distance
• (Δt)   Change in Time

Velocity(v): The calculator computes the velocity in meters per second (m/s).  However this can be automatically converted to numerous other velocity units (e.g. mph) via the pull-down menu.

The Math

  The formula for average velocity is:

     v = Δx / Δt

where:

• v is the average velocity
• Δx is the change in distance
• Δt is the change in time

In vector notation this can also be represented as the difference between two position vectors separated in time:

     `|v_"Avg"|`  = `(|Deltavecr|)/(Deltat) = |vecr_2 - vecr_1| / (t_2 - t_1)`

Motion Calculators:

• Compute Duration (Time) of Free Fall
• Compute Distance (Height) of Free Fall
• Compute Final Velocity of a Free Fall
• Compute the time from the distance and velocity.
• Compute the velocity from the distance and time.
• Compute the distance from the velocity and time.
• Distance from initial displacement, velocity and time
• Distance from initial displacement, velocity, time and constant acceleration

References

• Young, Hugh and Freeman, Roger.  University Physics With Modern Physics.  Addison-Wesley, 2008. 12th Edition, (ISBN-13: 978-0321500625 ISBN-10: 0321500628 ) Pg 72, eq 3,2
• Light and Matter(Dr. Benjamin Crowell) Chapter 2.3 Graphs of motion; velocity