1. Engineering
  2. Mechanical Engineering
  3. 3 two highways intersect as shown in fig 438 at...

Question: 3 two highways intersect as shown in fig 438 at...

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3. Two highways intersect as shown in Fig. 4-38. At the instant shown, a police car P is 800 m from the intersection and moving at 80 km/h. Motorist M is 600 m from the intersection and mov- ing at 60 km/h. (a) In unit-vector notation, what is the velocity of the motorist with respect to the police car? (b) For the instant shown in Fig. 4-38, how does the direction of the velocity found in (a) compare to the line of sight between the two cars? (c) If the cars maintain their velocities, do the answers to (a) and (b) change as the cars move nearer the intersection? 60 km/h 600 m 80 km/h 800 m Fig. 4-38

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