Demonstration 2: On the axes to the right, sketch your

predictions for the x-component of the velocity as a function of

time and the y-component of the velocity as a function of time.

Only after you have made your predictions, click Velocity to

display a video with the Velocity-time graphs plotted out as the

ball moves. Compare the actual vx and vy velocity graphs to your

predictions and explain any differences.

Based on your graph for vx vs. t, write an equation for vx as a

function of tim e.

Vx

Based on your graph for vy vs. t, write an equation for vy as a

function of tim e.

Vy

Only after you have made your predictions, click here to see the

graphs of vx and vy vs. time. Compare to your predictions, ands

explain any differences. Explain the meaning of each term in the

equations.

x component

of velocity

+

y component

of velocity

time

time