A ball is dropped from a roof to the ground 8.0 m below. A rock is thrown down from the roof 0.600 s later. If they both hit the ground at the same time, what was the initial speed of the rock?
Added by Ahmed E.
Step 1
First, we need to find the time it takes for the ball to hit the ground. We can use the equation for free fall: h = 1/2 * g * t^2, where h is the height, g is the acceleration due to gravity (approximately 9.81 m/s^2), and t is the time. Show more…
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