question 9 of 10\nthe diagram below shows the velocities of two cyclists.\n8 m/s west\ncyclist 1\n3 m/s…

question 9 of 10\nthe diagram below shows the velocities of two cyclists.\n8 m/s west\ncyclist 1\n3 m/s west\ncyclist 2\nfrom the frame of reference of cyclist 2, what is the velocity of cyclist 1?\na. 3 m/s east\nb. 5 m/s east\nc. 3 m/s west\nd. 5 m/s west
Answer
Explanation:
Step1: Define velocity vectors
Let the west - direction be positive. Velocity of cyclist 1, $v_1 = 8\ m/s$, velocity of cyclist 2, $v_2=3\ m/s$.
Step2: Calculate relative velocity
The relative velocity of cyclist 1 with respect to cyclist 2 is $v = v_1 - v_2$. Substituting the values, we get $v=(8 - 3)\ m/s=5\ m/s$. Since the positive direction is west, from cyclist 2's frame of reference, cyclist 1 is moving 5 m/s west.
Answer:
D. 5 m/s west