course phy121
An object is given an unknown initial velocity up a ramp on which its acceleration is known to have magnitude 20 cm/s^2. It reaches a maximum distance of 115.6 cm up the ramp before rolling back down.
What is its initial velocity?
sqrt[0^2 - (2 * -20) *115.6] = v0 = 68cm/s
How many seconds after the initial impetus does the object pass a point 8 cm up the ramp from its initial position
(give all possible answers)?
.12sec after initial position.
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