Download Physics Exam I - Graphs and Calculations - Prof. Michael J. Nolan and more Exams Physics in PDF only on Docsity! Phys 231 Exam I January 30, 2009 NeveJqls4l!r!---- Student I.D. No. Recitation (circle one): 9:30 l:00 Keep in mind that I must be able to follow your work in order to give you credit. This is especially true when awarding partial credit. A wrong answer with the right methods gets partial credit. If I cannot figure out the methods th€n no credit. Answers must bejustified. An answer by itselfreceives no credit. [Inits! Vectors ! 0 -5.0 a) In the space below, sketch a quantitatively accurate graph ofinstantaneous accelemtion (venical axis) versus time (horizontal axis) for the object above. (Do not worry about he perfectly sharp comer on the velocity gaph.) Be cenain to provide a numerical scale, labels, units, hash marks, etc. I )(20 pts) The gaph below shows velocitv yersus time for an object of mass 0.50 kg executing one dimensional motion. V(rnlt \-. s tto t.(r) - f s b) In the space below, sketch a quantitatively accurate graph ofdisplacement versus time for the object abov€. Be certain to provide a numerical scale, labels, ulits, hash mark. etc. t (s I C u Y t t I t = .ro s Ax: (z e {- (o - z.r)rr. LT r^tV..) X(t- t AX: qna , r . r ^ f t r : + 2 7 . € w . c) In the space below, sketch a graph ofV", the x component ofvelocity (venical axis), versus time (horizontal aris). Be certain to include axis labels, units, a numerical scale, and hash marks on your graph. V*('-/"t v- (*l K r o r { : l . l - t , o .fis Vo: I .rr f ox = - . r t /* 3. rS- . t l \ t , l . r , f d) In the space below, sketch a graph ofY-component ofthe normal f#e acting onlr4lverticil axis.y versus time (horizontal axis). Be certain to include aris labels, units, a numerical scale, and hash marks on your gaph. tfs ) e) lnthe space below, sketch a graph ofthe y component ofthe force ofg,aviry acting on the mass M. Be certain to include-d\is.labels, units, a numerical scale, and hash marks on your graph. F \lcl' i!r. Nt= N = * tu<o: t ?o\ ) (q. r%)( . , *n, r ' ) = ?.e3 N 2 , r 3 . \ F$ l t' lvrr^ = - t-r) - 2 . t - l r - A l = - Z . ? 3 N 3) (10 pts) Thee different vectors al*a c .. "*r, I o * iffi ;ild ;;'ff ; n:H,ffi [".:[?*":lt : iX ilnil: the masnitude . . , 1 B-------) J . l - l c+ c) calculate the magnituoe or3 = a'+f+d t " 0 I S, -- A c*-t Joo t I -br 5b -- A d-3$'- B - - I C : | ] . 6 t O crr<. Q ^r-t* 30 ' 3 \ ' c \ \a$ / s - / = a) ln the space below, carefully draw.and label four vectors. Three qre ge vecrors i, il, Cl fl. fourrf,vector you should label is the arrow tha, ,"p..r"nt, tt. u..t".,"rfl?.S*C. Label itT b) ln rhe space below, carefuliv draw three vectors. Two are the vectors? andt.vecror difference b .tr t Label rr o. The third vector is the l l . o ( ( s S :
