Trip the change in internal energy of projectile and air

Reference no: EM13645785

A 5-kg projectile is fired over level ground with a velocity of 200m/s at an angle of 25? above the horizontal. Just before it hits the ground its speed is 150m/s.Over the entire trip the change in the internal energy of the projectile and air is:

A. +19, 000 J
B. −19, 000 J
C. +44, 000 J
D. −44, 000 J
E. 0

Reference no: EM13645785

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