A 2.8 kg melon is launched straight upwards with an initial velocity of 34 m/s , ignoring air resistance, how high will the melon reach above the ground?

b. If the melon actually reaches a height of only 40 m, calculate the average
force of air resistance acting against the melon as it rises,

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.

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation: