A boxer punches a sheet of paper in midair and brings it from rest up to a speed of 40 m/s in 0.05 s. If the mass of the paper is 0.01 kg, the force of impact on the paper is about
A) 0) 08 N.
B) 0) 8 N.
C) 8) 0 N.
D) 80 N.
Correct Answer:
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