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anonymous
 5 years ago
What formula is used for: Object dropped off a 210 ft building. Initial v=24. What is the velocity at 130 ft? s(t) = 16t^224t+210. v(t) = 3224. Already got velocity after 3 sec but not sure how to adjust formula for v at 130 ft.
anonymous
 5 years ago
What formula is used for: Object dropped off a 210 ft building. Initial v=24. What is the velocity at 130 ft? s(t) = 16t^224t+210. v(t) = 3224. Already got velocity after 3 sec but not sure how to adjust formula for v at 130 ft.

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Tried making s(t)=0 to find t then install value for t into v(t)=32t24 but polynomial was not factorable. Quad. equation gave a ridiculous answer.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.016t^2  24t+210=130 Solve for t when you obtain t use the t as substitute for v=3224

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Your velocity formula is wrong btw it should be v(t)=32t24

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can't solve for t b/c haven't been able to factor (16t^224+80)=0. quad equation gives t= about 2.9 which doesn't make any sense b/c it isn't an option. And, check back. My v formula is v(t)=3224

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0it is wrong, it should be 32t24

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0assuming that t=2.9 is right I would plug into my V(t) 32(2.9)24=

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok, must not have hit the t key hard enough but I have been using the t. I get 116.8 but the answer is 94.32.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I did the quad equation twice. But id that is the correct formula then I guess that is all I need to know. I will do it again.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0This iswhat I got using quad equation. Was trying to remember what I got for t last night (not 2.9 it is 2.36). Anyway, either way the answer is not right and it is a ridiculous answer so if I did it right then I don't get how 16t^2  24t +80 is even factorable b/c the right answer is 94.32. 16t^2 24t+80=0 (24) + (Sqrt [(24)^2]4(16)(80)/2(16) 24 + (sqrt 576+5120)/32 24 + (sqrt 5696)/32 t= 242.36 or 24 + 2.36 32(21.64)24= 716.48 or 32(26.36)24= 867.52
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