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Ratling [72]
3 years ago
9

How much work is required to make a 1400 kg car increase its speed from 10 m/s to 20 m/s?

Physics
1 answer:
andrew11 [14]3 years ago
6 0
Sbbxnd xj cbc a xnbxhznxbxjzbbzjz. hzbzbzihzh. jzbzjzb
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\text{Given that,}\\\\\text{Height, h = 17 m}\\\\\\\text{We know that,}\\\\h = v_0t + \dfrac 12  gt^2\\\\\implies h = \dfrac 12 gt^2\\\\\implies t^2 = \dfrac{2h}g\\\\\implies t =\sqrt{\dfrac{2h}g} = \sqrt{\dfrac{2(17)}{9.81}} = 1.87 ~ \text{sec}

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