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50 Sample Mid 1 Soln pg 1

# 50 Sample Mid 1 Soln pg 1 - S S SAN JOSE STATE UNIVERSITY...

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Unformatted text preview: S S# . ______________________________. ___________ SAN JOSE STATE UNIVERSITY ”' PHYSICS DEPARTMENT PHYS Sta—MOH- CLOSED BOOK 9pr MIDTERM 1 SHOW ALL WORK IN SPACE PROVIDED FALL 2909 1- The Position of an object moving in a straight line is given by x = 8 — bt + 4tZ + t5, where x is in meters and t is in seconds. Determine: a) The average velocity between t: 15 and t: 35. b) The instantaneous velocity at t: 15 and t: 35. c) The instantaneous acceleration at t= 15 and t= 35. d) The average acceleration between t = 15 and t: 35. (CK) 'U’ _ 45K KB)“ X“) X63: 8- SLa)+4.3"-+33 (23’ pts) A L -— -—'"* = V ‘54; @433 = 9~l\$+'3(.+2.1: 56M UM- Eb’QJW 14mg, *0): ?—SCi)+4Li‘)+I°-—~ 8’.“ l5 —-——-- Q») U2 ﬁxﬁ ”-3+?++%z VQIJ:—StSZ-\+3wiz‘: émts k v9):13& 365+3-'31:*S+1q+27 A ‘3 Abwis -._" 1.7". a, 7.. ~ - a I): .. _. £3 0» 2% W64? 9 9+0: I — I4 his“; ate): ewsﬁﬂgmﬂ . \$2 @)a!\u ._. 45V“ U‘Q’L‘J—W) a {4.9 ”Cr )ihis QOMISZ ‘-—'-__._—_"'.. 1., - " ‘5: - .__.—__. d 4.. p- 2. Given the two vectors a = 8.0I — I4.0j + 4.0K and b = 2.0l + 6.0j +- 3.0K. Determine: a) The scalar product a -h b) The angle between a and h (13 ptSD @L) "(L-Q: So ram + F-‘l.0-(;..<s-{- 4-0- 3.0 a. [tow-— stem +t2.o = +\$f 0 Q0) ANGL‘L 6: 5004331“: “Cc-3‘1 [m]: Cos"[email protected]<31 Curio .. o a - Cl: 0€1+5432+41=~m=4m “"37 “‘30”? T bril11+e7~w312 0737214) ...
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