total distance = 5+3+1 = 9 km
so time = 9,000seconds
distance east = 4 km
distance north = 3 km
displacement = hypotenuse of 3 4 5 triangle = 5 km
speed east = 4 km/9 k seconds = .44444.... m/s
speed north = 3 km/9k seconds = .33333.... m/s
looks like B to me
On a hike you walk 5,000 m East, 3,000 m North, and 1,000 m West at a constant speed of 1 m/s. Calculate your velocity.
A) 1.0 m/s
B) 0.44 m/s East + 0.33 m/s North
C) 0.55 m/s
D) 1.0 m/s East + 1.0 m/s North
4 answers
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You are welcome.
Anonymous is 100% correct the answer is B) 0.44 m/s East + 0.33 m/s North