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5. The height s at time t of a silver dollar dropped from the top of...

5. The height s at time t of a silver dollar dropped from the top of a building is given by , where s is measured in feet and t is measured in seconds.

  1. Find the average velocity on the interval [1,2].
  2. Find the instantaneous velocity when t = 1 and t = 2.
  3. How long will it take for the dollar to hit the ground?
  4. Find the velocity of the dollar when it hits the ground.
  5. Find the acceleration of the dollar.

the function is s(t)= -16t^2 +1350

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