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
Alchen [17]
3 years ago
13

A rope pulls a 82.5 kg skier at a constant speed up a 18.7° slope with μk = 0.150. How much force does the rope exert?

Physics
1 answer:
Artist 52 [7]3 years ago
6 0

Answer:

374 N

Explanation:

N = normal force acting on the skier

m = mass of the skier = 82.5

From the force diagram, force equation perpendicular to the slope is given as

N = mg Cos18.7

μ = Coefficient of friction = 0.150

frictional force is given as

f = μN

f =  μmg Cos18.7

F = force applied by the rope

Force equation parallel to the slope is given as

F - f - mg Sin18.7 = 0

F - μmg Cos18.7 - mg Sin18.7 = 0

F = μmg Cos18.7 + mg Sin18.7

F = (0.150 x 82.5 x 9.8) Cos18.7 + (82.5 x 9.8) Sin18.7

F = 374 N

You might be interested in
How many joules of work are done against a truck when a force of 50 N pushes it 1 kilometer away
ELEN [110]

Answer:

Work = 50,000 J

Explanation:

Work = force * distance

Given that,

  • force = 50N
  • Distance = 1km = 1000m

Work = 50 * 1000

Work = 50,000 J

8 0
2 years ago
Plzzzzzzzzzzzzzzzzzzz help me in these 3 questions plzzzzzzzzzzzzzzzzz ASAP!!
lana [24]
A infared light has a higher
3 0
3 years ago
A rectangle has an area measuring 1350 square centimeters. Its length and width are whole numbers of centimeters. What are the p
Aleks04 [339]

The smallest perimeter of the rectangle is of value 150 cm.

Given:

The area of the rectangle, A = 1350 cm²

Calculation:

Let the length of the rectangle be 'x'

      the breadth of the rectangle be 'y'

We know that the area of a rectangle is given as:

A = (x) × (y)  

Applying values in the above equation we get:

xy = 1350 cm²

Factorizing the value of 1350, the possible values of length and breadth of the rectangle is as listed below:

x (cm)         y (cm)

1350      ×       1

675       ×       2

450       ×       3

270       ×       5

225       ×       6

150        ×       9

135        ×       10

90         ×       15

75         ×        18

54         ×        25

50         ×        27

45         ×        30         (least possible value)

Thus, the smallest perimeter of the rectangle can be calculated as:

P = 2 (x + y)

  = 2 (45 + 30)

  = 150 cm

Therefore, the smallest perimeter that the rectangle will have is 150 cm.

Learn more about factorization here:

<u>brainly.com/question/9231261</u>

#SPJ4

7 0
2 years ago
Unpolarized light can undergo polarization by this means off a nonmetallic surfaces.
AlekseyPX

Answer:

तिकडी एकच

Explanation:

आप सल क्ल वल दन रव दंचंबी एक गम ok plz

8 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Ivanshal [37]

If the wavelength increases (gets longer), then the frequency <em>decreases</em>.

(A wave occurs less often.)

7 0
3 years ago
Other questions:
  • The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis t
    15·1 answer
  • . How far apart must two point charges of 75.0 nC (typical of static electricity) be to have a force of 1.00 N between them?
    5·1 answer
  • The formula for calculating power is work divided by time (power = work ÷ time). What are two ways of stating the same relations
    8·2 answers
  • Application of a biot-savart law
    13·1 answer
  • An object of mass 82kg is accelerated upward at 3.2m/s/s. what force is required
    11·1 answer
  • Part B: Quantitative
    10·1 answer
  • Compasses line up with magnetic fields. A compass will line upA. Parallel to magnetic field lines, with the south pole pointing
    13·2 answers
  • In the equation vx^2=v0x^2+2ax(x-x0) what does the terms vx, v0x, x, and x0 stand for respectively?
    5·2 answers
  • When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV1.4=C
    13·2 answers
  • Hello people ~
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!