Asked by mesfin

A runner jogs 12km North then turns and runs 16km East three hours
Answered by Henry
d = d1+d2 = 12 + 16 = 28km = Total distance ran.

If the time was 3h,
r = 28km/3h = 9.33 km/h = Avg. speed.

Disp. = 16 + 12i = 20km[36.9o].

V = 20km[36.9o]/3h = 6.67km/h[36.9o].

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12+16+3-3=28
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