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

Author Question: A dump truck has a large cubical concrete block in its bed. The coefficients of friction between ... (Read 90 times)

folubunmi

  • Hero Member
  • *****
  • Posts: 524
A dump truck has a large cubical concrete block in its bed. The coefficients of friction between this block and the floor of the bed are k = 0.450 and s = 0.650.
 
  As the bed is slowly tilted above the horizontal, will the brick first begin to slide or will it first tip over?
  A) It will first tip over.
  B) It will first begin to slide.
  C) It will tip over just as it begins to slide.
  D) It is impossible to answer without knowing the mass of the block.
  E) It is impossible to answer without knowing the dimensions of the block.

Question 2

A 5.0-m long, 12-kg uniform ladder rests against a smooth vertical wall with the bottom of the ladder 3.0 m from the wall.
 
  The coefficient of static friction between the floor and the ladder is 0.28. What distance, measured along the ladder from the bottom, can a 60-kg person climb before the ladder starts to slip?
  A) 4.0 m
  B) 3.7 m
  C) 1.7 m
  D) 1.3 m
  E) 3.3 m



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stallen

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C




folubunmi

  • Member
  • Posts: 524
Reply 2 on: Jul 29, 2018
Gracias!


zacnyjessica

  • Member
  • Posts: 345
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

For a complete list of videos, visit our video library