1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AnnyKZ [126]
3 years ago
14

A horizontal force of 160 N is used to push a 50.0 kg packing crate a distance of 7.00 m on a rough horizontal surface. The acce

leration of gravity is 9.81 m/s 2 . If the crate moves with constant velocity, calculate a) the work done by the force. Answer in units of J. 005 (part 2 of 2) 10.0 points b) the coefficient of kinetic friction.
Mathematics
1 answer:
trasher [3.6K]3 years ago
7 0

Answer: a) 1120Nm b) 0.33

Step-by-step explanation:

a) Work is said to be done when a force applied to an object causes the body to move through a distance. Mathematically,

Work done = Force × distance

To calculate the work done by the force, we will use the formula for work done

Workdone = 160 × 7

Work done = 1120Nm

b) According to friction, coefficient of kinetic friction is equal to the ratio of the moving force (Fm) to the normal reaction (R).

Normal reaction = weight of the object= mass × acceleration due to gravity

R = 50 × 9.81

R = 490.5N

Moving force Fm = 160N

Coefficient of kinetic friction = Fm/R

= 160/490.5

Coefficient of kinetic friction = 0.33

You might be interested in
COPY THE TABLE BELOW IN YOUR NOTEBOOK. THEN ROUND EACH ITEM TO THE NEAREST HUNDREDTHS AND THOUSANDS​
kobusy [5.1K]
What’s the items number. ? When rounding everything in front of the decimal find the place value it wants you to round then if it’s 5 or below round the the lowest whole number. If it’s behind a decimal you would do the same thing. It’s the number is higher than 5 round it up.
8 0
3 years ago
Can someone help me with this? I need it before Monday. I will give brainlist!! If the picture is too blurry here is the problem
tigry1 [53]

Answer:

1.  total volume of box=2.5(V)D

2. 7 Drawers

Step-by-step explanation:

2.5 = V

so 1 draw = 2.5 cubic inches of volume

so V(2.5) × D(number of drawers) = total volume of drawers in the box

6 0
2 years ago
Is the equation y + 1=7(x+2) in point slope form
olga nikolaevna [1]
No nodcause it has to me in y=mx+b form. so just sub. 1 from each side
8 0
3 years ago
If wx = XZ, then WX = YZ
EleoNora [17]
False, because there is not enough information to prove that it is true

hope this helps
5 0
3 years ago
Read 2 more answers
Select the TWO true statements. A. Two squares with the same side lengths are always congruent. B. Two rectangles with the same
Anastasy [175]

Answer:

A and C

Step-by-step explanation:

This would be the correct answers because they are congruent and dilated from each other

3 0
3 years ago
Other questions:
  • Which point would represent the value of v—72 Include the letter of the answer and then justify your response using complete sen
    14·1 answer
  • 11) Cyndi deposits three checks for $425.22, $883.99, and $57.05. She also deposits cash of 45 one-
    10·2 answers
  • If x + 10 = 70, what is x?
    10·2 answers
  • Find the value of w to make the statement true.<br>-w = -10 + 4w
    10·1 answer
  • If PQ and RS intersect from four right angles which statement is true
    7·1 answer
  • PLZ HELP ME I AM TIMED HELP PLZ​
    12·1 answer
  • The Barnes family has a coupon for 10% off their dinner. If their bill comes to $82.50 and they wish to tip 15%, what will they
    14·1 answer
  • Sarita bought 12 bananas at the farmer’s market. Each banana cost $0.35 cents. She paid with a $10 bill. How much change did she
    9·1 answer
  • Solve this linear equation: <br><br>x/2 + 3/4 = x/8 ​
    5·1 answer
  • A skull cleaning factory cleans animal skulls and other types of animals using flesh eating Beatles. The factory owner started w
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!