thoughtful 1)
Added by Lisa H.
Step 1
We know that the rock falls 20 meters (y = 20) in 4 seconds (t = 4). We can plug these values into the equation to find g: 20 = g(4)^2 20 = 16g g = \frac{20}{16} = \frac{5}{4} So, the value of g is: g = \boxed{\frac{5}{4} \text{ m/s}^2}. (b) Show more…
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