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Author Question: A 5.0-kg mass is attached to the ceiling of an elevator by a rope whose mass is negligible. What ... (Read 211 times)

frankwu

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on: Aug 1, 2020

Question 1

A 4.0-kg block slides down a 35° incline at a constant speed when a 16-N force is applied acting up and parallel to the incline. What is the coefficient of kinetic friction between the block and the surface of the incline?

◦
0.20

◦
0.23

◦
0.26

◦
0.33

◦
0.41


Question 2

A 5.0-kg mass is attached to the ceiling of an elevator by a rope whose mass is negligible. What force does the mass exert on the rope when the elevator has an acceleration of 4.0 m/s2 upward?

◦
69 N downward

◦
29 N downward

◦
49 N downward

◦
20 N downward

◦
19 N downward
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by frankwu on Aug 1, 2020

cici

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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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frankwu

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Reply 2 on: Aug 1, 2020
Thanks for the timely response, appreciate it

Joy Chen

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Reply 3 on: Yesterday
Wow, this really help

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