Calculating Distance Traveled with Changing Velocity

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
2 replies · 2K views
AnomalyCoder
Messages
29
Reaction score
0

Homework Statement


At t = 0 you have a speed of 30m/s. At t = 6, your speed is 14m/s. How far do you travel during this time interval?


Homework Equations


Velocity = Distance/Time
Distance = Velocity/Time


The Attempt at a Solution


Honestly don't know.
I would do it by averaging the two data points.. (30m/s + 14m/s)/2 = 22m/s.
Then just grab 6 seconds which is the change in time, and use (22m/s)*6m/s.
(22m/s)*(6 seconds) = 132 meters.
Is this correct?
 
Physics news on Phys.org
Assuming that you know the motion is uniformly accelerated, and that the speeds are in the same direction, then your method is perfectly correct.
 
Or another way to do it is to graph those two points, then find the area under the curve, because the integral of velocity is position(just a fancy word for the area under the curve)