Homework Help: physics

Posted by Becky on Sunday, October 11, 2009 at 3:54pm.

As soon as a traffic light turns green, a car speeds up from rest to 50.0 mi/h with a constant acceleration of 9.90 mi/h·s. In the adjoining bike lane, a cyclist speeds up from rest to 20.0 mi/h with a constant acceleration of 13.5 mi/h·s. Each vehicle maintains a constant velocity after reaching its cruising speed.

(a) For how long is the bicycle ahead of the car?

(b) By what maximum distance does the bicycle lead the car?

I ended up with a quadratic equation but the answer was incorrect, but it was so long to solve that I don't know at what point I would go wrong.

No one has answered this question yet.

Answer this Question

Related Questions

physics - As soon as a traffic light turns green, a car speeds up from rest to ...
physics - As soon as a traffic light turns green, a car speeds up from rest to ...
Physics - As soon as a traffic light turns green, a car speeds up from rest to ...
physics - As soon as a traffic light turns green, a car speeds up from rest to ...
physics - Vroom-vroom! As soon as a traffic light turns green, a car speeds up ...
Physics - Hi guys, would appreciate some help with this problem: When a light ...
physics - At the instant a traffic light turns green, a car starts from rest ...
physics - At the instant a traffic light turns green, a car starts from rest ...
science - a car is stopped at a traffic light, which then turns green. The car ...
physics - According to recent test data, an automobile travels 0.250 mi in 19.9 ...

For Further Reading

First Name:
School Subject:
Answer: