This topic contains a solution. Click here to go to the answer

Author Question: A 3.00-m-long 200-N ladder, leans against a smooth vertical wall with its base on a horizontal rough ... (Read 97 times)

KimWrice

  • Hero Member
  • *****
  • Posts: 579
A 3.00-m-long 200-N ladder, leans against a smooth vertical wall with its base on a horizontal rough floor, a distance of 1.00 m away from the wall. The ladder is not completely uniform, so its center of gravity is 1.20 m from its base.
 
  What force of friction must the floor exert on the base of the ladder to prevent the ladder from sliding down? A) 93.3 N
  B) 130 N
  C) 28.3 N
  D) 102 N
  E) 150 N

Question 2

Our sun will conclude its life as
 
  A) a white dwarf.
  B) a black hole.
  C) a neutron star.
  D) a red giant.
  E) a daffodil.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

GCabra

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

C

Answer to Question 2

A





 

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

For a complete list of videos, visit our video library