Key Test 3 f'09

Key Test 3 f'09 - 110 points Math 111 Pledged K~_/--- Test...

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Unformatted text preview: 110 points Math 111 Pledged K~_/--- Test 3 fall 2009 1. A toy gun shot a "bullet" upward at 29.4 m/sec from a rock 34.3 meters high. Respond to the following: (each question is 4 points each, 16 points) ~ a(t) ~ 9.8 m/sec 2 v(t) =-9, <6 t + ;;lq, ~ h(t) =_ 4, ~-t '2. -+ =:l'i, 4-l:. -+ 3l\. 3 a) When did the bullet reach the greatest height? V( t.) ~ 0 : - 9. <g t + ~ '1. 1-\ = 0 t == ~ g ,~-= ~13-s-e-C)--" q,<3 ---- b) What is the greatest height? ~ ( 3):: - '-\ A C~ )?. +- ;lq, '1 L3') -t '3 L\ .3 =-144.\ + ~<il.:2.-r'3l\.3 =\ 7~J+yV)J c) When did the bullet hit the ground? ~ (-t-) = 0 ~- 4~"1:.:l-r~q,L\-t:. + 3l\. 3 o :=. -\.\ ,q Ct?'- h-t - 1) (-(;- 1 ) ( t + \) = 0 -t: 1 -t:: - I So [7 se e] d) What was the velocity when the bullet hit the ground? V(7) = -Cf,<;(7) +-;).9,~ __-----, ::; - ~ 'i. L. -+ ;;19.'-\ ::; t 3 tt.;z. rn \ :;ec.] 3 2. Find the area between y =--2 + 2x and y = x . Clearly sketch the graph to show the two regions....
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Key Test 3 f'09 - 110 points Math 111 Pledged K~_/--- Test...

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