Multiple Choice
Suppose car A starts a race at time with a constant speed , and car B starts later at time with a higher constant speed (). How long after car B started the race will car B catch up with car A?
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Suppose car A starts a race at time with a constant speed , and car B starts later at time with a higher constant speed (). How long after car B started the race will car B catch up with car A?
A police car at rest is passed by a speeder traveling at a constant 36 m/s. The police officer takes off in hot
pursuit, accelerating at a constant 2.00 m/s2. (a) How long does it take for the police officer to overtake the speeder? (b) Calculate the speed of the police car at the overtaking point.
David is driving a steady 30 m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.0 m/s² at the instant when David passes. What is her speed as she passes him?