**Unformatted text preview: **1. ll}. Sample Midterm Examination
Physics 2M Time Allowed: 1 hr. Manimum marks: 10!] Ammnkesaﬂlﬂnlonu‘ipatannversgespeedofmlanlhr. Asecondcarlhonrlalerarrivetal theirmntualdectinntlonatthemroetime. Whatwastheaveragespecdoftheseeandcart‘orthe
period that itwasinnlotion? T Themirﬁmnmdistanoerequiredtostopncarmoﬁngntﬁﬂlnnt’hrisdﬂ meters.Whatisthenlirljmnnl
stopping disnmoe for the car moving at 100 kmr'hr, amnming the same rate of acceleration. T Acorn-andslﬂlctndueeastendthenlttltiuinadirectionoﬂ°northofenst as shown in the ﬁgure. Find the magnitude and direction of the car's
resultant displacement o 1ul'ector A has it and 1r components of 43.? cm and 15 cm, respectively; vector Bhasnandycomponenteoflllcmand-ﬁﬁctttrcspectinely. If ﬁ-E+JE=U. Whntarcﬂle
componentsoffi? ‘t Ahoat crosses awide river wldlaspcedoi'ltllnm'hrrelatihetowater. Titeritrerhns aoniforrn speed
of 5 lonihr doe east relative to earth. Determine the Speed of the boat relative to the stationary
ground observer. In what direction should the boat he heading to teach a point across the river? 12
lithollisthrownhorlzontallgﬁ'otnthetopofahuildingwmhigh. Theballstrlkestheg‘omldata point It“) In tom the base of the building. Find tn] the time the ball is in flight. U1) the initial.
veIocity. 11 Ifa olnn weighs 93:] N on earth. What would he weigh on Jupiter. where the free fall acceleration is
15.9 min?! to n hloeh is placed on a plane inclined sot relative to the horizontal. Iftl'lehlock slides down centehe' with an acceleration of magnitude gﬂ. determine the ooeﬁicient of kinetic friction between block and
the plane. 12 A person weighs a ﬁsh of moss 1.5 kg on a spring we attached to the ceiling of an elevator. What
would he the reading on the scale if die elevator accelerates £101de mm on melemﬁon ofﬁtniﬁ'
Whatwouldlle the reading ifthe elctotorwas going upnnrd with an acceleratiooof I mist". 11
ldtltlallattiteend ofastringiswhirlednroundinahorizontalcltcleofrariias 0.30 to. Theplane of
thecircleis Limabovethegound. l'tlesoinghreaksandthebelllandszﬂmawayﬁom the point
on the ground directly beneath the halls location when the string hrtclaltst Find the centripetal
acceleration of the ball during its circular motion 13 ...

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