A cannonball launched with a speed of 46m/s moves upwards to maximum height. Assume the speed changes steadily. Determine all unknowns.
I need initial average and final velocity but can only get average.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

e/c, where e is its total energy