Agolfball is hit from ground level with an initial vertical velocity of 64 ft/s. after how many seconds will the ball hit the ground? a. 3 seconds b. 4 seconds c. 5 seconds d. 6 seconds

The ball hits the ground at unknown time (t) when the height (h) = 0

h(t) = -16t² + vt + h    ⇒ v = 64, h = 0, h(t) = 0, find t

 0  = -16t² + 64t

 0  = -16t(t - 4)

0 = -16t       or    0 = t - 4

  t = 0         or        t = 4

It starts at t = 0 seconds and ends at t = 4 seconds

B

72 fudge and 75 toffee

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i hope this : )

i dont know sorry

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