kkruvc
17.07.2019 •
Mathematics
Irene hits a golf ball off the ground with an initial upward velocity of 45 m/s. which equation can be used to find the amount of time, t, it will take to hit the ground? a. -16t^2+45=0 b.-16t^2+45t=0 c.-4.9t^2+45=0 d.-4.9t^2+45t=0
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Ответ:
Equation C has the initial height of the ball as 45 m, with no vertical velocity. Equation D has the vertical velocity as 45 m/s.
The appropriate choice is ...
D. -4.9t^2+45t = 0
Ответ: