A ball at rest is dropped from the top of a 20 m high building. Calculate the speed with which it hits the ground. (Take g = \( 10 \text{ m/s}^2 \))
- AOption (a)
\( 10 \text{ m/s} \)
- BOption (b)
\( 40 \text{ m/s} \)
- COption (c)
\( 14 \text{ m/s} \)
- DOption (d)
\( 20 \text{ m/s} \)
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Correct answer
\( 10 \text{ m/s} \)
