Q3 A-car starts accelerating with +5m/s^2 from still (i. e. v=0) when B-car moving with 10m/s is 10m behind. Is the B-car able to catch A- car ? a)yes;

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Presentation transcript:

Q3 A-car starts accelerating with +5m/s^2 from still (i. e. v=0) when B-car moving with 10m/s is 10m behind. Is the B-car able to catch A- car ? a)yes; b) no.

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Q1. Velocity and acceleration 1.If one is positive the other one has to be positive. 2.If one is equal zero at some time t, the other has to be zero. 3.Their signs are independent. 4.Acceleration is always smaller then velocity.