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Author Question: The force of static friction between two surfaces is independent of the area of contact between the ... (Read 63 times)

lak

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on: Jul 29, 2018
The force of static friction between two surfaces is independent of the area of contact between the surfaces.
 
  Indicate whether the statement is true or false

Question 2

A 5.0-m radius playground merry-go-round with a moment of inertia of 2000 kgm2 is rotating freely with an angular speed of 1.0 rad/s.
 
  Two people, each having a mass of 60 kg are standing right outside the edge of the merry-go-round and step on it with negligible speed. What is the angular speed of the merry-go-round right after the two people have stepped on? A) 0.20 rad/s
  B) 0.40 rad/s
  C) 0.60 rad/s
  D) 0.80 rad/s
  E) 0.67 rad/s


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juiceman1987

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

TRUE

Answer to Question 2

B


lak

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Reply 2 on: Jul 29, 2018
Gracias!

LVPMS

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Reply 3 on: Yesterday
Excellent

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