Question

The figure shows the graphs of three functions. One is the position function of a car, one is the velocity of the car, one is its acceleration, and one is its jerk. Identify each curve.

http://i42.tinypic.com/mbqovd.gif

Answer 1

a) is Jerk
b) is Acceleration
c) is Velocity
d) is Position

Answer 2

Thank you so much! :)
I still don't understand.. do you mind explaining it a little?

Answer 3

Well i first assumed that the motion was in a single direction,
so looking for position first, d) is the only line that doesn't come back to the x axis

Answer 4

velocity should start at zero, and increase until the car is traveling at about the right speed, which is c)

Answer 5

acceleration is starts at zero hits a peak and by the time the car is traveling at uniform velocity should be zero, This is b), the line the dips below zero as the car slows down (effectively accelerating backwards

Answer 6

to get the car to move at all their has to be initial positive jerk, which is what makes the car jolt into action, as acceleration peaks the jerk switches signs effectively resiting the motion

Answer 7

Thanks alot. I understand now.

Answer 8

the functions are all time derivatives of position