(Solved): Please help me answer this :)) An experiment is designed to test the validity of the expression i ...

Please help me answer this :))

An experiment is designed to test the validity of the expression in calculating the velocity of the rod at the free end given by the formula, \( v=\sqrt{3 g L} \). A student uses rods of various lengths that all have a uniform mass distribution. The student releases each of the rods from the horizontal position \( \mathrm{A} \) and uses photogates to measure the velocity of the free end at position B. The data are recorded below. a) Indicate below which quantities should be graphed to yield a straight line whose slope could be used to calculate a numerical value for the acceleration due to gravity \( g \). Horizontal axis : Vertical axis Use the remaining rows in the table above, as needed, to record any quantities that you indicated that are not given. Label each row you use and include units. b) Plot the straight line data points on the grid below. Clearly scale and label all axes, including units as appropriate. Draw a straight line that best represents the data. c) Using your straight line, determine an experimental value for \( g \). d) Calculate the percentage error.