Recent content by Mary27

meters per second

I changed 5 minutes to 300 seconds and multiplied that by 5 m/s to get 1500.

1500m/s-1200m/s=300m/s 300m/s / 630s=0.476m/s west

The first calculation is 1200m/s east The second calculation is 1500m/s west The distance is greater going west.

4m/s x 300sec=1200m/s 5m/s x 300sec=1500m/s 1500m/s- 1200m/s=300m/s 300m/s /630=.476m/s Is the direction west or east? I think west.

So then is the total displacement 4+5? And the time would be 630 seconds? The equation would be: 9/630= 0.0142857

Is the vector displacement -1 Does the rest period for 30 seconds come into the equation?

Homework Statement A runner moves with a velocity of 4.0 m/s due east for 5.0 minutes. The runner then rests for 30 seconds, turns around and heads due west with a velocity of 5.0 m/s for 5 minutes. What is the runner's average velocity for the entire journey from start to finish? Homework...