A Rock Is Dropped from a Building That Is 60

question 158

Multiple Choice

A rock is dropped from a building that is 60 meters high. The rock s height h in meters after t seconds is given by the equation . At what time is the rock at a height of 30 meters? Round the answer to two decimal places.

• A) 2.47 sec
• B) 6.12 sec
• C) 3.50 sec

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