4. Marcus throws a rock straight up into the air. It leaves his hand 1.2 meters above the ground, and it hits the ground 3.5 seconds later. Find a. the initial speed of the rock when it leaves his hand b. the maximum height the rock reaches before falling back down, relative to the ground c. the speed of the rock right before it hits the ground

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4. Marcus throws a rock straight up into the air. It leaves his hand 1.2 meters above the ground, and it
hits the ground 3.5 seconds later. Find
a. the initial speed of the rock when it leaves his hand
b. the maximum height the rock reaches before falling back down, relative to the ground
c. the speed of the rock right before it hits the ground
Transcribed Image Text:4. Marcus throws a rock straight up into the air. It leaves his hand 1.2 meters above the ground, and it hits the ground 3.5 seconds later. Find a. the initial speed of the rock when it leaves his hand b. the maximum height the rock reaches before falling back down, relative to the ground c. the speed of the rock right before it hits the ground
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