« 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 152 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?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

A classification system for living and extinct organisms. A classification system for living and extinct organisms.
Typical components of software for a practice management system (PMS). Typical components of software for a practice management system (PMS).
To maintain global power requires the continuous development of weapons. Shown here is the Osprey. ... To maintain global power requires the continuous development of weapons. Shown here is the Osprey. ...
A PCV valve shown in a cutaway valve cover showing the baffles that prevent liquid oil from being ... A PCV valve shown in a cutaway valve cover showing the baffles that prevent liquid oil from being ...
The retina-geniculate-striate system: the neural projections from the retinas through the lateral ... The retina-geniculate-striate system: the neural projections from the retinas through the lateral ...
Divisions of the Nervous System Divisions of the Nervous System
Video: Stress and Immune System Animation

For a complete list of videos, visit our video library