Solve for V0 — consider from t = 0s to the turning point at t = 2 s:
vf = v0 - gt
vf = 0 m/s, g = 10 m/s2,
v0 = vf + gt = 0 + (10)(2) = 20 m/s
A stone is thrown upward from the edge of a cliff, reaches its maximum height, and then falls down into the valley below. A motion diagram for this situation is given (Figure 1) , beginning the instant the stone leaves the thrower’s hand.
Construct a graph corresponding to the stone's vertical displacement, y(t), taking the acceleration due to gravity as exactly 10 m/s2. Ignore air resistance. The unit of time is in seconds and the unit of displacement is in meters. In plotting the points, round-off the coordinate values to the nearest integer.
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