You throw a stone upwards into the air. After 9.7 seconds, the stone falls to the ground 10.4 meters ahead. What is the speed of the stone when it is 11.9 m above the ground? (Take g = 9.8 m/s².)
Added by Elif C.
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Step 1
First, we need to find the initial velocity of the stone when it was thrown. To do this, we can use the time it took for the stone to fall back to the ground (9.7 seconds) and the gravitational acceleration (g = 9.8 m/s²). Show more…
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