« previous next »

Author Question: A 300-N sled is pulled up a 28 slope at a constant speed by a force of 250 N. What is the ... (Read 106 times)

formula1

  • Hero Member
  • *****
  • Posts: 666
on: Jul 28, 2018
A 300-N sled is pulled up a 28 slope at a constant speed by a force of 250 N. What is the coefficient of kinetic friction between sled and slope?
 a. 0.21
  b. 0.41
  c. 0.11
  d. 1.55
  e. 2.95

Question 2

A man pulls a sled at a constant velocity across a horizontal snow surface. If a force of 85 N is being applied to the sled rope at an angle of 56 to the ground, what is the force of friction between sled and snow?
 a. 85 N
  b. 70 N
  c. 48 N
  d. 5 N
  e. 43 N


jointhecircus

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

b

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Reindeer pulling a sled in Russia Reindeer pulling a sled in Russia
The Trundholm Sun chariot pulled by a horse is a sculpture believed to be illustrating an important The Trundholm Sun chariot pulled by a horse is a sculpture believed to be illustrating an important
Slope Failure and Lithology Slope Failure and Lithology
The initial timing is where the spark plug fires at idle speed. The computer then advances the ... The initial timing is where the spark plug fires at idle speed. The computer then advances the ...
For a particular process that is carried out at constant pressure, q = 145 kJ and w = -35 kJ. ... For a particular process that is carried out at constant pressure, q = 145 kJ and w = -35 kJ. ...
The decay constant of radon-222 is 0.181 d-1. If a sample of radon initially contains 6.00 × ... The decay constant of radon-222 is 0.181 d-1. If a sample of radon initially contains 6.00 × ...
Video: Fertilization and Development

For a complete list of videos, visit our video library