Physics, 27.01.2020 02:31 rileyeddins1010
Tim and rick both can run at speed vr and walk at speed vw, with vr> vw. they set off together on a journey of distance d. rick walks half of the distance and runs the other half. tim walks half of the time and runs the other half.
part a
how long does it take rick to cover the distance d?
express the time taken by rick in terms of vr, vw, and d.
part b
find rick's average speed for covering the distance d.
express rick's average speed in terms of vr and vw.
part c
how long does it take tim to cover the distance?
express the time taken by tim in terms of vr, vw, and d.
Answers: 3
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