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2 May, 00:01

A roller coaster car rapidly picks up speed as it rolls down a slope. as it starts down the slope, its speed is 4 m/s. But 3 seconds later, its speed is 22m/s. what is its average acceleration?

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  1. 2 May, 03:45
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    6m/s^2

    a = (v-v0) / t so (22-4) / 3 = 6
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