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

Author Question: The reason that you would use a ramp to carry a weight to the top of a platform, rather than lifting ... (Read 65 times)

fnuegbu

  • Hero Member
  • *****
  • Posts: 539
on: Jul 28, 2018
The reason that you would use a ramp to carry a weight to the top of a platform, rather than lifting it up a ladder, is because the
 a. force exerted would be less
  b. work done would be less
  c. power expended would be less
  d. gain in potential energy would be more

Question 2

A particle moves along a circular path having a radius of 2.0 m. At an instant when the speed of the particle is equal to 3.0 m/s and changing at the rate of 5.0 m/s2, what is the magnitude of the total acceleration of the particle?
 a. 7.5 m/s2
  b. 6.0 m/s2
  c. 5.4 m/s2
  d. 6.7 m/s2
  e. 4.5 m/s2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macmac

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

a

Answer to Question 2

D


fnuegbu

  • Hero Member
  • *****
  • Posts: 539
Reply #2 on: Jul 28, 2018
Thanks


macmac

  • Sr. Member
  • ****
  • Posts: 343
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

The birth weight of human infants is tightly constrained by natural selection. The birth weight of human infants is tightly constrained by natural selection.
Both men and women gain weight in young adulthood and middle adulthood, losing in the late 50s, but Both men and women gain weight in young adulthood and middle adulthood, losing in the late 50s, but
The reason I selected this photo is to illustrate how seriously we must take all preaching of hatred ... The reason I selected this photo is to illustrate how seriously we must take all preaching of hatred ...
Tai chi walk along straight line. From tai chi stance, shift weight to the back leg and turn the ... Tai chi walk along straight line. From tai chi stance, shift weight to the back leg and turn the ...
Overhead stretch for the shoulder muscles. Lean back to create the stretch using your body weight. Overhead stretch for the shoulder muscles. Lean back to create the stretch using your body weight.
Pineapples carry harmful insect shell insects, safe to eat? Pineapples carry harmful insect shell insects, safe to eat?
Video: Elementary kinetics

For a complete list of videos, visit our video library