Question: I'm confused please help this is for physics. 1. A biker starts a trip and rides at a constant velocity of + 12 km/h for

I'm confused please help this is for physics.

1. A biker starts a trip and rides at a constant velocity of + 12 km/h for 0.20 h. For the next 0.10 h he bikes at an increased constant velocity and finds that he is at a rest stop +4.8 km from his starting point. In the next 0.20 h, half of which he rests, his average velocity is +9.0 km/h. a. Construct a d-t graph for the trip b. What is his average velocity for the trip

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