# A stone is thrown vertically upward from the top of the building. If the equation of the motion of the stone is ( ) = −5 2 + 30 + 200 , where is the directed distance from the ground in meters and is in seconds.a. What is the height of the building?b. What is the average velocity on the time interval [1,3]c. What is the instantaneous velocity at time t=1?d. at what time the stone will hit the ground?e. What is the instantaneous velocity of the stone upon impact?

A stone is thrown vertically upward from the top of the building. If the equation of the motion of the stone is ( ) = −5 2 + 30 + 200 , where is the directed distance from the ground in meters and is in seconds.a. What is the height of the building?b. What is the average velocity on the time interval [1,3]c. What is the instantaneous velocity at time t=1?d. at what time the stone will hit the ground?e. What is the instantaneous velocity of the stone upon impact?

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