Physicshard · Past Paper
Two cars A and B are moving with velocities of 20 m/s and 30 m/s in the same direction. What is the relative velocity of B with respect to A?
A50 m/s
B10 m/s
C-10 m/s
D1.5 m/s
✓ Correct Answer: B — 10 m/s
V_ba = V_b - V_a = 30 - 20 = 10 m/s.
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