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Author Question: A 3.0-kg mass is released from rest at point A of a circular frictionless track of radius 0.40 m as ... (Read 91 times)

evelyn o bentley

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on: Aug 1, 2020

Question 1

A 3.0-kg ball with an initial velocity of (4+ 3) m/s collides with a wall and rebounds with a velocity of (−4 + 3) m/s. What is the impulse exerted on the ball by the wall?

◦
+24Ns

◦
−24 Ns

◦
+18 Ns

◦
−18 Ns

◦
+8.0 Ns


Question 2

A 3.0-kg mass is released from rest at point A of a circular frictionless track of radius 0.40 m as shown in the figure. The mass slides down the track and collides with a 1.4-kg mass that is initially at rest on a horizontal frictionless surface. If the masses stick together, what is their speed after the collision?



◦
2.1 m/s

◦
1.7 m/s

◦
1.9 m/s

◦
1.5 m/s

◦
2.3 m/s
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by evelyn o bentley on Aug 1, 2020

peter

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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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evelyn o bentley

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Reply 2 on: Aug 1, 2020
Great answer, keep it coming :)

bitingbit

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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