3 Figure 2 shows a way of projecting a small trolley up a sloping track. alshows
button
track
trolley
h
P
Figure 2
When the button is pressed, a spring is released in P that projects the trolley up the track.
The trolley travels up the track, stops and then rolls back down.
The spring in P always exerts the same force when projecting the trolley.
(a) A student investigates how the mass of the trolley affects the maximum vertical
height, h, reached by the trolley.
State the measurements the student should make to complete the investigation
You should make use of the equipment shown in Figure 2 and any other
equipment that is needed.
Your answer​