In an experiment to determine the relationship

between force and momentum, a force X$,$ is applied to a mass, by

placing the mass on an inclined plane, and the time, Y$,$ for the velocity to

change from um$//$s to vm$//$s is measured. The results obtained are as

follows:

a$)$ Draw a scatter plot.

b$)$ Determine the equation of the regression line of time on force,

assuming a linear relationship between the quantities, correct to $3$

significant figures.