physics

A car travels in a straight line for 3.7h at a constant speed of 63 km/h.
What is the acceleration?
Answer in m/s^2

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  1. constant speed? zero acceleration.

  2. A car traveling in a straight line has a velocity
    of 6.03 m/s at some instant. After 6.89 s, its
    velocity is 10.6 m/s.
    What is its average acceleration in this time
    interval?
    Answer in units of m/s
    2

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