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Author Question: A particle starts from rest at xi = 0 and moves for 10 s with an acceleration of +2.0 cm/s2. For the ... (Read 199 times)

CQXA

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on: Aug 1, 2020

Question 1

A particle moving with a constant acceleration has a velocity of 20 cm/s when its position is x = 10 cm. Its position 7.0 s later is x = −30 cm. What is the acceleration of the particle?

◦
−7.3 cm/s2

◦
−8.9 cm/s2

◦
−11 cm/s2

◦
−15 cm/s2

◦
−13 cm/s2


Question 2

A particle starts from rest at xi = 0 and moves for 10 s with an acceleration of +2.0 cm/s2. For the next 20 s, the acceleration of the particle is −1.0 cm/s2. What is the position of the particle at the end of this motion?

◦
zero

◦
+3.0 m

◦
−1.0 m

◦
+2.0 m

◦
−3.0 m
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Marked as best answer by CQXA on Aug 1, 2020

amandalm

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Reply #1 on: Aug 1, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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CQXA

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Reply 2 on: Aug 1, 2020
YES! Correct, THANKS for helping me on my review

patma1981

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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