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A car accelerates from 25km/hr to 55km/hr in 30 seconds. What is its acceleration?

  • physics - ,

    Convert the speeds to m/s, take the difference, and divide by 30 s.

    That will give you the answer in units of m/s^2, which is probably what they want.

    25 km/hr = 25*1000/3600 = 6.94 m/s

    You do the rest

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