A roofer tosses a piece of roofing tile froma aroof onto the gound 30 feet below. He tosses the tile with an initial downward velocity of 10 feet per second. 1. Make an equation to find hoe long it takes the tile to hit the ground. Use, H=-16t^2+vt+h, where h is the height after t seconds, v is the inital velocity, and h is initail height.2. How long does it take to hit the ground? -------gt; PLEASE HELP ME WITH NUMBER 1.....I REALLY DON‘T GET IT! :)
A roofer tosses a piece of roofing tile froma aroof onto the gound 30 feet below. He tosses the tile with an initial downward velocity of 10 feet per second. <3 CHANEL<3 1. Make an equation to find hoe long it takes the tile to hit the ground. Use, H=-16t^2+vt+h, where h is the height after t seconds, v is the inital velocity, and h is initail height. H=-16t^2+vt+h 0 = -16t? + 10t + 30 ============================= 16t? - 10t - 30 = 0 ? Ans ============================= 2. How long does it take to hit the ground? Quadratic formula: at? + bt + c t = [-b±√b? -4ac}/2a t = [-(-10)±√(-10)? - 4(16)(-30)]/2(16) t = [10 ±√100 + 1920]/2 t = [10 ± 44.94]/2 ======================== t = 27.47 sec ? Ans ======================== hope this helps Remember that Jesus loves you. Know Him in His words the Bible. God Bless Lim?E
