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11 May, 17:51

A car, moving along a straight stretch of highway, begins to accelerate at 0.0323 m/s 2. It takes the car 63.3 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s.

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  1. 11 May, 17:53
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    X=ut+0.5at²

    1000 = 63.3u + 0.5 * 0.0323 * 63.3²

    u = (1000 - 0.1615*63.3²) / 63.3

    u = 5.57 m/s

    i don't even know if this is correct
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