Homework Answers
B) 2) A) < 1.3, 0, 0 > m/s
time taken to move from A to B, t1 = 60/2
= 30 s
time taken move from B to C, t2 = 60/4
= 15 s
average velocity from A to C = total displacement from A to C/time taken
= 60/(t1 + t2)
= 60/(30 + 15)
= 1.3 m/s
clearly the displacement is towards +x
so, vx = 1.3 m/s, vy = 0 , vz = 0
so, v = <1.3, 0, 0> m/s
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