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Setler79 [48]
3 years ago
5

A stone is dropped from the edge of a roof how long it take to fall 4.9m

Geography
1 answer:
harkovskaia [24]3 years ago
4 0
It’s always depends on the mass/weight of the rock heavier goes faster and the lighter goes slower (but if they are roughly the same size there is no dramatic change in speed)
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\tan\theta=\dfrac{p}{b}\\\Rightarrow p=b\tan\theta\\\Rightarrow p=42\tan63^{\circ}\\\Rightarrow p=82.43\ \text{feet}

The distance from the car to the base of the building is 82.43\ \text{feet}.

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