AP Physics 1mediummcq1 pt
A car's engine provides 20000 W. At a constant 40 m/s, the force opposing the car's motion is
A.500 N
B.800000 N
C.20000 N
D.250 N
Explanation
Core Concept
At constant speed, driving force equals resistance: F = P/v = 20000/40 = 500 N.
Correct Answer
A500 N
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