This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A box of mass m is placed on an incline with angle of inclination . The box does not slide. The ... (Read 19 times)

nelaaney

  • Hero Member
  • *****
  • Posts: 560
on: Jul 28, 2018
A box of mass m is placed on an incline with angle of inclination  . The box does not slide. The magnitude of the frictional force in this case is:
 a. s mg sin .
  b. mg cos .
  c. mg sin .
  d. not given.

Question 2

A box is to be moved across a level surface. A force of magnitude 200 N may be applied at an angle of 30 below the horizontal to push the box or at an angle of 30 above the horizontal to pull the box, either application sufficient to overcome friction and move the box. Which application will cause the box to have the greater acceleration?
 a. the one below the horizontal
  b. the one above the horizontal
  c. both give equal acceleration
  d. more information is needed


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

b


nelaaney

  • Member
  • Posts: 560
Reply 2 on: Jul 28, 2018
:D TYSM

epscape

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Brain mass as a function of body mass in mammals. Brain mass as a function of body mass in mammals.
Mass Exchange Between Close Binary Stars Mass Exchange Between Close Binary Stars
Variations in Solar Angle with Latitude Variations in Solar Angle with Latitude
What is the mass of BaCl2 in a 0.250 L bottle of 0.200 M BaCl2? What is the mass of BaCl2 in a 0.250 L bottle of 0.200 M BaCl2?
A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ... A wave whose wavelength is 0.500 m is traveling down a 500-m long wire whose total mass is 25 ...
An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ... An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ...
Video: Calvin Cycle Explained!

For a complete list of videos, visit our video library