A car falls off a bridge and drops to the ground in $0.5 s$ . Let $g = 10 m / s^{2}$ , what is its speed on striking the ground?

5 m / s

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10 m / s

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15 m / s

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20 m / s

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Solution

The correct option is A $5 m / s$
$v = u + a t = 0 + 10 (0.5) = 5 m / s$

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