(a) At acertain time during the acceleration, Jeep P has a speedof 38.0 m/s. Wha

Question

(a) At acertain time during the acceleration, Jeep P has a speedof 38.0 m/s. What is the velocity of Jeep P relative toJeep B at that time?
1m/s
2° (counterclockwise from due east)

(b) What is the acceleration of Jeep P relative to JeepB?
3m/s2
4° (counterclockwise from due east) I keep getting this wrongon homework, I just need to know a detailed explaination on how tosolve it. (like step by step) our exams coming up and i just don'tget it. Thanks so much, I reallythank you from the bottom of my heart for helping me out.:) I keep getting this wrongon homework, I just need to know a detailed explaination on how tosolve it. (like step by step) our exams coming up and i just don'tget it. Thanks so much, I reallythank you from the bottom of my heart for helping me out.:)

Explanation / Answer

The problem implies, but does not state, that the two jeepsstarted from the same point. Otherwise the direction of the line joining them cannot bedetermined. Let P be the distance that jeep travels and B the distancethat jeep B travels. Then P2 + B2 - 2 P B cos =d2    where d is the distance betweenthem. Where (180 - 1) + 2 + = 180    and = 1 -2 = 34 deg 2 P dP/dt + 2 B dB/dt - 2 cos (P dB/dt + B dP/dt) = 2 ddd/dt dB/dt is given and you can easily obtain dP/dt from dP =a t   and t = v / a Now you have all the information needed to solve theproblem. The sine rule can give you the needed direction of sided. Obtain d2d / dt2 by differentiating asecond time (d2B / dt2) = 0 Hope you find this useful.

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