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When a skydiver jumps from an airplane, the distance d in feet the diver falls in t seconds before opening the parachute is given by the formula d=16t^2. The formula assumes that there is no air resistance. Find the time it takes a skydiver to fall 1,551 ft before opening the parachute. Round to the nearest tenth.

a) 9.7 s
b) 9.8 s
c) 9.9 s
d) 2.5 s

  • math -

    is the answer b ?

  • math -

    yes. good work.

  • math -

    yes

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