An object is launched from an initial height of 5 feet and initial upward velocity of 65 feet per second. Which of the following could be used to determine at what times the object's height is less than 50 feet? [Let t represent time.] A. -16t^2 + 5t + 65 50 C. -16t^2 + 65t + 5 50

Question

An object is launched from an initial height of 5 feet and initial upward velocity of 65 feet per second. Which of the following could be used to determine at what times the object's height is less than 50 feet? [Let t represent time.] A. -16t^2 + 5t + 65 < 50 B. -16t^2 + 5t + 65 > 50 C. -16t^2 + 65t + 5 < 50 D. -16t^2 + 65t + 5 > 50

perl · Answer

did you use
y = -1/2 * g *t^2 + vo*t + y0

anonymous · Answer

No. I didn't