What variable do you think made this airplane fly the farthest?​

Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?

Aphysical change is a change in the size, shape,, or stafe of matter true or false

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =