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15 February, 07:00

Assume that the stopping distance of a can varies directly with the square of the speed. A van travelling 20 miles per hour can stop in 30 feet. If the van is travelling 24 miles per hour, what is it's stopping distance?

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  1. 15 February, 07:23
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    43.2 feet

    Step-by-step explanation:

    D = k * speed²

    30 = k * 20²

    k = 3/40

    D = (3/40) * 24²

    D = 216/5

    = 43.2 feet
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