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Physics, 13.07.2020 20:01 lauretta

ANSWER QUICKLY PLEASE A moving sidewalk has a velocity of 1.5 m/s north. If a man walks south on the sidewalk at a speed of 0.8 m/s, how long does it take him to travel 10 m relative to a stationary observer?
A. 14.3 s
B. 12.4 s
C. 9.5 s
D. 6.7 s

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