Question: 4. Let S() - -5/ + 40/ be the position equation for a rock thrown upwards. At what time t, in seconds, will the rock

4. Let S() - -5/" + 40/ be the position equation for a rock thrown upwards. At what time t, in seconds, will the rock change directions? a. 85 C. OS b. 4 5 d. 8.195 s

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4. Let #() - -5/ + 40/ be the position equation for a rock thrown upwards. At what time t, in seconds, will the rock change directions? a. 85 C. OS b. 4 5 d. 8.195 s

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