Multiple Choice
A 9 kg model airplane lies horizontally at a constant speed. If the plane suddenly dives from its altitude of 50 m and levels off at 20 m, how much potential energy does it lose in the dive?
A) 450 J
B) 1800 J
C) 2700 J
D) 9000 J
Correct Answer:
Verified
Correct Answer:
Verified
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