Lisette tosses a softball straight up into the air at a velocity of 3.8m/s. after 4.5 seconds

b.

explanation:

probably not if net force is zero

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.