Question: A 2 . 0 - kg mass is projected vertically upward from ground level with an initial speed of 3 0 m / s .
A kg mass is projected vertically upward from ground level with an initial speed of ms The mass rises to a maximum height of m above ground level. What is the change in mechanical energy of the mass caused by air resistance between the point of projection and the point of maximum height?
a
kJ
b
kJ
c
kJ
d
kJ
e
kJ
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