IMG_5848

l SSex ¢ Ounty ( ollege Divisio n of !\lnlng‘., L hrmlsny and vyehcs PHY 103 General Physics Seat (Lt lon 0012 Test November 14 2017 = Name KA A Part A Please O L1 i k ANswer "\Q' ollowin credit K Questions. Each question is : worth 1 point. There Is ne D partial i f the onty forcoes \ 5 o 2 Ung on a 2.0-kg mass are § 4 -TNNand F, =31+ 21V N \ i HAZII N, what is the Magnitude of th e OfF the "‘”’I"”':"'-‘n"'”"‘L‘C"Ic o7 8) 25mi b) 2.5m c) 4.2 m/s d) 9.6 m/s e) 86m/s*. 2 1"1r|\n L).:],\.'.(. slide on a frictionless horizo 5 ¢ +5 horizontal surface when pulled by a force of magnitude F. When W." compare the tensions T, and T, with the force £, we find that aj T T g b) r=rF=r7 c) FoT, =T, [ l 7, l T, l T d F>T >7 | ] | ] | | ‘5‘;] v T T 7 3. The first of two identical boxes of mass m is sitting on level ground. The second box is sitting on a ramp that makes a 20° angle with the ground. The normal force of the level ground on the first box is N, ; the normal force of the ramp on the second box is N,. Which statement is correct? a) N, =N, =mg b) N, =mg; N, =mgsin20° c) N, =mg; N, = mgcos20° d) N, =mg; N, =-mgcos20' el N, N, =—mg A book is placed on a chair. Then a videocassette is placed on the book. The floor exerts a normal force on all three, only on the book. only on the chair upwards on the chair and downwards on the book, only on the objects that you have defined to be part of the cystem 3 b. G d e