4. Two cars travel around a circular track, one on an inner lane of radius 12.0...
4. Two cars travel around a circular track, one on an inner lane of radius 12.0 m, and one on an outer lane of radius 16.0 m. The cars initially have the same speed of 15.0 m/s.
(a) What are the centripetal accelerations of the two cars initially?
(b) What speed would the car in the outer lane need so that it would complete one full loop in the same time as the car in the inner lane?
(c) If it took 4.5 s for the car in the outer lane to uniformly increase its speed from its initial value to the speed you found in part (b), what would be the car’s tangential acceleration?
(d) If both cars travel at constant speeds, and they both complete one full loop in the same amount of time, which car would have the greater centripetal acceleration? Explain.
Homework Answers
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4. Two cars travel around a circular track, one on an inner lane
of radius 12.0...
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The inner lane of a circular track has a radius of 136 m. The outer lane of the track has a radius of 146m. Runner 1 runs in the inner lane of the track and runner 2 runs in the outer lane. If the two runners have the same angular speed as they run, which of the following statements must be correct? The linear speed of runner 1 must be less than that of runner 2. The linear speed of...
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25.1) Consider two identical cars travelling around a circular track. One car travels on an inside track and one on an outside track. Both cars complete a lap in the same amount of time. Which car has the highest kinetic energy? A) The outer car B) The inner car C) Both have the same KE 25.2) A solid disk and a flywheel (hoop) both have the same mass m, radius R, and angular velocity w. Which object has more kinetic...
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I just need Question 4
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