« previous next »

Author Question: In which of the following cases would you do the least amount of work? 1.You push a box a distance ... (Read 62 times)

lindiwe

  • Hero Member
  • *****
  • Posts: 577
on: Jul 28, 2018
In which of the following cases would you do the least amount of work?
  1.You push a box a distance d across a floor.
  2.You pick up the box, walk a distance d, and gently put the box down on the floor.
  3.You pick up the box, walk a distance d, and drop the box.
  4.Both 1 and 2 are the least.
  5.Both 1 and 3 are the least.
  6.Both 2 and 3 are the least.
  7.The amount of work done is the same in all three cases.
  8.The amount of work cannot be determined from information given.

Question 2

Two blocks, M1 > M2, having the same speed, move from a frictionless surface onto a surface having friction coefficient k.
 
   
 
   
   Which stops in the shorter time?


  1. M1
  2. M2
  3. Both stop in the same time
  4. Cannot be determined


wtf444

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 28, 2018
Answer to Question 1

2

Answer to Question 2

3


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

"Visual Acuity Testing, Assessing Distance Vision "Visual Acuity Testing, Assessing Distance Vision
Injecting an IV push (bolus) medication; A, into a peripheral saline lock Injecting an IV push (bolus) medication; A, into a peripheral saline lock
Work and Gender: Women at Work in India Work and Gender: Women at Work in India
Polio eradication campaign in Georgia in the 1950s. In the 1950s, 20,000 cases of polio occurred ... Polio eradication campaign in Georgia in the 1950s. In the 1950s, 20,000 cases of polio occurred ...
A depiction of the amount of precipitin that would form with different ratios of antigen and ... A depiction of the amount of precipitin that would form with different ratios of antigen and ...
Math work Math work
Video: Cardiac Cycle (Part 1 of 4)

For a complete list of videos, visit our video library