« previous next »

Author Question: A system of blocks and a frictionless pulley is shown in the figure. Block A has a mass of 2.0 kg ... (Read 186 times)

neverstopbelieb

  • Hero Member
  • *****
  • Posts: 534
on: Jul 29, 2018
A system of blocks and a frictionless pulley is shown in the figure. Block A has a mass of 2.0 kg and is on a rough horizontal surface for which s = 0.40 between the surface and block A.
 
  The rope pulls horizontally on block A. Block C has a mass of 1.0 kg. An external force P = 23.0 N, applied vertically to block A, maintains the system at rest as shown in the figure. What is the friction force on block A?
 
  A) 6.3 N
  B) 6.9 N
  C) 7.5 N
  D) 5.7 N
  E) 5.1 N

Question 2

Two blocks are connected by a string that goes over an ideal pulley as shown in the figure and pulls on block A parallel to the surface of the plane.
 
  Block A has a mass of 3.00 kg and can slide along a rough plane inclined 30.0 to the horizontal. The coefficient of static friction between block A and the plane is 0.400. What mass should block B have in order to start block A sliding up the plane?
 
  What will be an ideal response?


dawsa925

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: 2.54 kg


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Anatomical Charts Muscular System Anatomical Charts Muscular System
Mass Loss by a Supermassive Star Mass Loss by a Supermassive Star
Heat Exchanger Block Diagram Feedforward Control Heat Exchanger Block Diagram Feedforward Control
Major Degenerative Diseases of the Central Nervous System Major Degenerative Diseases of the Central Nervous System
Tummy rock to release energy blocks in the torso and head. Tummy rock to release energy blocks in the torso and head.
Primary Glands of the Endocrine System Primary Glands of the Endocrine System
Video: Acid-base imbalances - metabolic acidosis and alkalosis

For a complete list of videos, visit our video library