A ball is thrown horizontally with a speed of 10.0 m s–1 above horizontal ground. The ball hits the ground after a time of 3.0 s.
Air resistance is negligible.
What is the speed of the ball just before it hits the ground?
1 )
$10m{s^{ - 1}}$
2 )
$29m{s^{ - 1}}$
$31m{s^{ - 1}}$
4 )
$39m{s^{ - 1}}$
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