加速度学习网英语

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SampleQuestionsExam

splottedonans-tgraph(sbeingontheverticalaxis),

whatwillthegraphbe?

t(s)0.01.02.03.04.05.06.07.08.09.010.0

s(m)0.02.04.06.06.06.06.07.08.09.010.0

estheslopereprent?

2.a)Defineaveragevelocity.

b)Thex-tgraphofa1-DmotionpassthroughpointsA(3s,4m)andB(5s,10m).Whatistheaveragevelocityinthe

displacementAB?

3.a)Defineaveragevelocity.

b)Thex-tgraphofa1-DmotionpassthroughpointsA(3s,4m)andB(5s,10m).Whatistheaveragevelocityinthe

displacementAB?

4.a)Giventhedisplacementversustimegraphofabody,howtodeterminegraphicallythevelocityatanyinstantt?

b)Ifthegraphisastraightline,whatdoesitsslopereprent?

c)Whatdoesazeroslopereprent?

hedatafromthepreviouxample,completethetablebelow,thenplotthedataofvelocityv

nav-tgraph(vbeingontheverticalaxis).

t(s)0.01.02.03.04.05.06.07.08.09.010.0

v(ms-1)

elocityisconstant,thenwhatwillthegraphbe?

Whatisthevelocitywhentheslopeiszero?

estheslopeofthislinereprent?

7.a)Defineaverageacceleration.

b)Thev-tgraphofa1-DmotionpassthroughpointsA(2s,3m/s)andB(5s,12m/s).

Whatistheaverageaccelerationintheinterval[2s,5s]?

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8.a)Howcanwedeterminethedisplacementinanytimeintervalusingav-tgraph?

b)Usingthev-tgraphgivenbelow,

Findthedisplacementintheintervals,[0s,4s],[9s,12s],and[17s,24s].

9.a)Howcanyoudeterminethedisplacementfromthev-tgraph?

t(s)0.01.02.03.04.05.06.07.08.09.010.0

v(ms-1)

b)Usingthegraphreprentingtheabovedata,findthedisplacementfrom:

(a)t=0stot=1.0s.

(b)t=0stot=2.0s.

(c)t=2.0stot=3.0s.

(d)t=4.0stot=6.0s.

(e)t=6.0stot=10.0s.

ionwithconstantvelocity,whatistherelationbetweendisplacement,velocityandtimetaken?

11.a)Formotionwithconstantvelocity,whatistherelationbetweendisplacement,velocityandtime

taken?

b)Acarmovingat20m/spassbyapointx=5matt=1s;findxafter4conds.

utheequations=

1

2

2atfordisplacement?

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Acaracceleratesfromrestinastraightlineataconstantrateof4.0m/s2for4.0condsthenmoves

edisplacementofthecarinthefirst3

conds.