First record some data for this comparison in the table below. •Record your measured values of displacement and velocity for times t=8.0 seconds and t=10.0 seconds in the columns below.
• Next use the measured displacement and velocity values at t=7.0 seconds and t=9.0 seconds to interpolate the values of displacement and velocity at t=8.0 seconds.
• use the following formula to interpolate and extrapolate. Remember, x and y here represent values on the x and y axes of the graph. The x values will really be time and the y values will be either displacement(x) or velocity (vx)
y-y0=[(y1-y0)/ (x1-x0)] •(x-x0)