s251ex2(sp11)

s251ex2(sp11) - MATH 251 Exam II April 4, 2011 ANSWER KEY...

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MATH 251 Exam II April 4, 2011 ANSWER KEY (Form A) 1. (a) k = 20 (b) γ = 20 (c) T = π / 5 (d) True – the system is underdamped. 2, B 3. C 4. A 5. B 6. A 7. D 8. (a) T (b) F (c) T 9. (a) t t e e t f 2 5 2 1 5 7 10 1 ) ( - + + = (b) - + - = - - ) 2 2 sin( 2 5 ) 2 2 cos( ) ( ) ( 5 5 5 5 1 t e t e t u t f t t 10. ( ) ) 10 2 sin( ) ( 2 ) 6 2 cos( 2 ) ( 2 sin
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This note was uploaded on 07/16/2011 for the course MATH 251 taught by Professor Chezhongyuan during the Spring '08 term at Penn State.

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