Asked by Alex
a stone thrown from ground level returns to the same level of projection 4s after. with what speed was the stone thrown? Take g=10 m/s2
Answers
Answered by
Scott
2 s up and 2 s down
the velocity took 2 s to drop to zero (at the peak of the flight)
so it must have started at 20 m/s
the velocity took 2 s to drop to zero (at the peak of the flight)
so it must have started at 20 m/s
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