The diagram below shows the velocities of two cyclists. 7 mathrm(~m) / mathrm(s) west Cycilist 1 4 mathrm(~m) / mathrm(s) west Cyclist 2 From the frame of reference of cyclist 1, what is the velocity of cyclist 2? A. 4 mathrm(~m) / mathrm(s) east B. 4 mathrm(~m) / mathrm(s) west C. 3 mathrm(~m) / mathrm(s) west D. 3 mathrm(~m) / mathrm(s) east

## Step 1: Identify the frame of reference### From cyclist 1's perspective, treat cyclist 1's velocity as zero.## Step 2: Calculate relative velocity of cyclist 2### Subtract the velocity of cyclist 1 from the velocity of cyclist 2 to determine the relative velocity. ### The negative sign indicates the opposite direction, so east.