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Author Question: In the figure, a ball hangs by a very light string. What is the minimum speed of the ball at the ... (Read 224 times)

ts19998

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on: Oct 11, 2019

Question 1

The figure shows a famous roller coaster ride. You can ignore friction. If the roller coaster leaves point Q from rest, what is its speed at the top of the 25-m peak (point S)?

◦ 62 m/s
◦ 44 m/s
◦ 22 m/s
◦ 120 m/s
◦ 10 m/s

Question 2

In the figure, a ball hangs by a very light string. What is the minimum speed of the ball at the bottom of its swing (point B) in order for it to reach point A, which is 1.0 m above the bottom of the swing?



◦ 4.9 m/s
◦ 4.4 m/s
◦ 2.2 m/s
◦ 3.1 m/s
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Marked as best answer by ts19998 on Oct 11, 2019

jessicaduplan

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Reply #1 on: Oct 11, 2019
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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ts19998

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Reply 2 on: Oct 11, 2019
Excellent

adf223

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

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