a stone is dropped from window reaches the ground in 0.5 second g=10m/s calculaye its speed just before it reaches the ground
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Answer: -5m/s
Explanation: v(t) = v(0) + at
Since it's dropped v(0) is
0m/s, a -10 m/s^2 and t=.5, so put it into the formula v(t) = 0 + (-10) (0.5), v(t) = -5m/s, (-)sign indicates it's moving downwards.
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