PHYS 1600 FINAL EXAM -DR. MERRILL A
UNIVERSITY QUESTIONS AND CORRECT
For cgeneral cprojectile cmotion, cwhen cthe cprojectile cis cat cthe chighest cpoint cof cits ctrajectory: ca. c
cvelocity cis cperpendicular cto cthe cacceleration cc. cIts cvelocity cand cacceleration care cboth czero cd.
cits cvelocity cis czero ce. cThe chorizontal cand cvertical ccomponents cof cits cvelocity care czero c- cCOR
cis cperpendicular cto cthe cacceleration.
2. cApproximately chow cmany cpennies cwould cyou chave cto cstack cto creach can caverage c2 cmeter
cc. c2x10^4 cd. c2x10^5 c- cCORRECT cANS✔✔B. c2x10^3
3. cCar cA cwith ca cmass cof c2m cis ctraveling cwest cat ca cspeed cof cv. cCar cB cwith ca cmass cof cm cis
c2v. cBoth ccars cslam con ctheir cbrakes cat cthe csame ctime, cskidding cto ca cstop. cAssuming cthe ccoe
cbetween cthe cwheels cof cthe ccars cand cthe croad cis cthe csame, cwhich ccar ctravels cfarther cwhile cs
csame cdistance cb. cCar cA ctravels cfarther cc. cCar cB ctravels cfarther cd. cImpossible cto ctell cwithout
ctell cwithout cknowing cm c- cCORRECT cANS✔✔C. cCar cB ctravels cfarther
4. cSuppose cthat ca ccar ctraveling cto cthe cwest c(the c-x cdirection) cbegins cto cslow cdown cas cit capp
cstatement cconcerning cits cacceleration cin cthe cx cdirection cis ccorrect? ca. cBoth cits cacceleration ca
cBoth cits cacceleration cand cits cvelocity care cnegative cc. cIts cacceleration cis cpositive cbut cits cveloc
cacceleration cis cnegative cbut cits cvelocity cis cpositive ce. cNothing ccertain ccan cbe csaid cabout cthe
cacceleration c- cCORRECT cANS✔✔c. cIts cacceleration cis cpositive cbut cits cvelocity cis cnegative
Alice cand cTom cdive cfrom can coverhang cinto cthe clake cbelow. cTom csimply cdrops cstraight cdown
ctakes ca crunning cstart cand cjumps cwith can cinitial chorizontal cvelocity cof c25 cm/s. cNeither cperson
cair cresistance. cCompare cthe ctime cit ctakes ceach cof cthem cto creach cthe clake cbelow. ca) cAlice cre
cfirst. cb) cTom creaches cthe csurface cof cthe clake cfirst. cc) cAlice cand cTom cwill creach cthe csurface c
cd) cWe cneed cto cknow cthe cheight cof cthe ccliff cbefore cwe ccan cfind cthis cout ce) cWe cneed cto ckno
cAlice cand cTom cwill creach cthe csurface cof cthe clake cat cthe csame ctime.
A cstock cperson cat cthe clocal cgrocery cstore chas ca cjob cconsisting cof cthe cfollowing cfive csegment
ctomatoes cfrom cthe cstockroom cfloor cvertically c(2) cAccelerating cto ca ccomfortable cspeed c(3) cCa
cdisplay cat cconstant cspeed c(4) cDecelerating cto ca cstop c(5) cLowering cthe cboxes cslowly cto cthe cf
cthe cfive csegments cof cthe cjob cdoes cthe cstock cperson cdo czero cwork con cthe cboxes? ca. c(1) cand
c(4), c- cCORRECT cANS✔✔b. c(3)
When ca crigid cbody crotates cabout ca cfixed caxis, call cthe cpoints cin cthe cbody chave cthe csame ca. c
UNIVERSITY QUESTIONS AND CORRECT
For cgeneral cprojectile cmotion, cwhen cthe cprojectile cis cat cthe chighest cpoint cof cits ctrajectory: ca. c
cvelocity cis cperpendicular cto cthe cacceleration cc. cIts cvelocity cand cacceleration care cboth czero cd.
cits cvelocity cis czero ce. cThe chorizontal cand cvertical ccomponents cof cits cvelocity care czero c- cCOR
cis cperpendicular cto cthe cacceleration.
2. cApproximately chow cmany cpennies cwould cyou chave cto cstack cto creach can caverage c2 cmeter
cc. c2x10^4 cd. c2x10^5 c- cCORRECT cANS✔✔B. c2x10^3
3. cCar cA cwith ca cmass cof c2m cis ctraveling cwest cat ca cspeed cof cv. cCar cB cwith ca cmass cof cm cis
c2v. cBoth ccars cslam con ctheir cbrakes cat cthe csame ctime, cskidding cto ca cstop. cAssuming cthe ccoe
cbetween cthe cwheels cof cthe ccars cand cthe croad cis cthe csame, cwhich ccar ctravels cfarther cwhile cs
csame cdistance cb. cCar cA ctravels cfarther cc. cCar cB ctravels cfarther cd. cImpossible cto ctell cwithout
ctell cwithout cknowing cm c- cCORRECT cANS✔✔C. cCar cB ctravels cfarther
4. cSuppose cthat ca ccar ctraveling cto cthe cwest c(the c-x cdirection) cbegins cto cslow cdown cas cit capp
cstatement cconcerning cits cacceleration cin cthe cx cdirection cis ccorrect? ca. cBoth cits cacceleration ca
cBoth cits cacceleration cand cits cvelocity care cnegative cc. cIts cacceleration cis cpositive cbut cits cveloc
cacceleration cis cnegative cbut cits cvelocity cis cpositive ce. cNothing ccertain ccan cbe csaid cabout cthe
cacceleration c- cCORRECT cANS✔✔c. cIts cacceleration cis cpositive cbut cits cvelocity cis cnegative
Alice cand cTom cdive cfrom can coverhang cinto cthe clake cbelow. cTom csimply cdrops cstraight cdown
ctakes ca crunning cstart cand cjumps cwith can cinitial chorizontal cvelocity cof c25 cm/s. cNeither cperson
cair cresistance. cCompare cthe ctime cit ctakes ceach cof cthem cto creach cthe clake cbelow. ca) cAlice cre
cfirst. cb) cTom creaches cthe csurface cof cthe clake cfirst. cc) cAlice cand cTom cwill creach cthe csurface c
cd) cWe cneed cto cknow cthe cheight cof cthe ccliff cbefore cwe ccan cfind cthis cout ce) cWe cneed cto ckno
cAlice cand cTom cwill creach cthe csurface cof cthe clake cat cthe csame ctime.
A cstock cperson cat cthe clocal cgrocery cstore chas ca cjob cconsisting cof cthe cfollowing cfive csegment
ctomatoes cfrom cthe cstockroom cfloor cvertically c(2) cAccelerating cto ca ccomfortable cspeed c(3) cCa
cdisplay cat cconstant cspeed c(4) cDecelerating cto ca cstop c(5) cLowering cthe cboxes cslowly cto cthe cf
cthe cfive csegments cof cthe cjob cdoes cthe cstock cperson cdo czero cwork con cthe cboxes? ca. c(1) cand
c(4), c- cCORRECT cANS✔✔b. c(3)
When ca crigid cbody crotates cabout ca cfixed caxis, call cthe cpoints cin cthe cbody chave cthe csame ca. c
