Share
Explore BrainMass

Classical Kinematics and Cyclist Speeds

Two cyclists are racing on a track that looks like the following diagram (see attachment).
Each horizontal section is 100 metres long.
Cyclist 1: Angelo has a mass that is twice of Cyclist 2: Jackie.

Both Angelo and Jackie start at rest and apply an equal Force to their bikes in section A, after which each of them stops peddling. Assume that friction and air resistance can be ignored.

Answer the following questions and justify each answer:
19. At the end of section A, who has the greater acceleration (circle one answer and justify it in the space provided)
Angelo
Jackie
Neither

20. Which cyclist reaches section B first?
Angelo
Jackie
Neither

21. Which cyclist imparts a greater impulse to his/her bike in section A?
Support your answer.

Angelo
Jackie
Neither

22. Which cyclist has greater momentum as they reach section B?
Support your answer.

Angelo
Jackie
Neither

23. Which cyclist has done more Work on their bike in Section A?
Support your answer.

Angelo
Jackie
Neither

24. Which cyclist has the greatest KE when they reach section C?
Support your answer.

Angelo
Jackie
Neither

25. Which cyclist has the greatest gravitational PE when each reaction section F?
Support your answer.

Angelo
Jackie
Neither

See attachment for diagram.

Attachments

Solution Summary

This solution identifies the correct answer choice in comparing the velocity, acceleration, impulse, work, KE, and PE between the two cyclists. Full explanations are included.

$2.19