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March 24, 2017

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Does the KE of a car change more when it
accelerates from 27 km/h to 37 km/h or when
it accelerates from 37 km/h to 47 km/h?
1. More information is needed.
2. No difference
3. From 37 km/h to 47 km/h
4. From 27 km/h to 37 km/h

  • Physics - ,

    Have you tried squaring the numbers? (Velocity is squared in the KE formula)

    Compare (47)^2 - (37)^2 with
    (37)^2 - (27)^2
    Which is greater?

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