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Author Question: A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ... (Read 80 times)

sc00by25

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on: Jul 29, 2018
A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable attached to the log makes an angle of 30 above the ground. The coefficient of static friction between the log and the ground is 0.
 
  50, and the coefficient of kinetic friction is 0.35. What minimum tension is required in the cable in order for the log to begin to slide?

Question 2

A 500-kg elevator is pulled upward with a constant force of 5500 N for a distance of 50.0 m. (a) What is the work done by the 5500-N force? (b) What is the work done by gravity? (c) What is the net work done on the elevator?
 
  What will be an ideal response?


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mammy1697

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Reply #1 on: Jul 29, 2018
Answer to Question 1

220 N

Answer to Question 2

(a) 275 Kj (b) -245 kJ (c) 30.0 kJ


sc00by25

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Reply 2 on: Jul 29, 2018
Wow, this really help

mjenn52

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

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