« 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 101 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?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
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?

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

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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
For this bimolecular reaction, the rate constant k is second order For this bimolecular reaction, the rate constant k is second order
Force Force
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 ...
Reaction at constant-volume Reaction at constant-volume
Converting the universal gas constant Converting the universal gas constant
Video: Types of Burns

For a complete list of videos, visit our video library