A 20-Kg Mass Is Projected Vertically Upward from Ground Level with with an Initial

Multiple Choice

A 2.0-kg mass is projected vertically upward from ground level with an initial speed of 30 m/s. The mass rises to a maximum height of 35 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) −0.21 kJ
B) −0.47 kJ
C) −0.40 kJ
D) −0.34 kJ
E) −0.69 kJ