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
deff fn [24]
3 years ago
6

A luggage handler pulls a 19.0-kg suitcase up a ramp inclined at 34.0 ∘ above the horizontal by a force F⃗ of magnitude 169 N th

at acts parallel to the ramp. The coefficient of kinetic friction between the ramp and the incline is 0.330. The suitcase travels 3.90 m along the ramp.
a)Calculate the work done on the suitcase by F⃗ .


Express your answer with the appropriate units.


b)Calculate the work done on the suitcase by the gravitational force.


c)Calculate the work done on the suitcase by the normal force.


d)Calculate the work done on the suitcase by the friction force.


e)Calculate the total work done on the suitcase.


f)If the speed of the suitcase is zero at the bottom of the ramp, what is its speed after it has traveled3.90 m along the ramp?
Physics
1 answer:
djverab [1.8K]3 years ago
4 0

Answer:

(a) 659.1 J

(b_) 368.56 J

(c) 0 J

(d) - 202.72 J

(e) 824.94 J

(f) 9.32 m/s

Explanation:

mass, m = 19 kg

inclination of the plane, θ = 34°

Force, F = 169 N

coefficient of friction, μk = 0.330

distance moved, d = 3.90 m

(a)

Work done by the force on the suitcase

W = F x d = 169 x 3.90 = 659.1 Joule

(b)

Work done by the gravitational force on the suitcase

W = F x d x Sinθ

W = 169 x 3.9 x Sin 34°

W = 368.56 Joule

(c)

Work done by the normal force on the suitcase

W = Normal force x distance x Cos 90

As the angle between the normal force and the distance is 90°

W = 0 Joule

(d)

Work done by the friction force

W = friction force x distance x Cos 180°

W = - μk x mg x cos 34 x 3.9

W = - 0.33 x 19 x 10 x 3.9 x 0.829

W = - 202.72 Joule

(e)

Total work done

W = 659.1 + 368.56 + 0 - 202.72

W = 824.94 Joule

(f)

According to the work energy theorem, the net work done is equal to the change in kinetic energy of the body.

824.94 = 0.5 x 19 ( v² - 0)

v = 9.32 m/s

You might be interested in
How many ounces are in one ton? 16 ounces 125 ounces 2,000 ounces 32,000 ounces
ale4655 [162]

32,000 ounces. hope it helps

5 0
3 years ago
Read 2 more answers
A 10-meter rope is lying on the floor and has a mass force of 20 N. How much work is required to raise one end of the rope to a
VMariaS [17]
Answer:10N

Explanation: I think
7 0
3 years ago
Two large, plastic tubs were filled with soil The soil was shaped to create a mound in each tub. The starting height of each mou
shutvik [7]

Answer:

b

Explanation:

6 0
2 years ago
Why must you bend forward when carrying a
Arturiano [62]

Answer:

hi I thinks its number 3

Explanation:

hope you have a nice day

5 0
3 years ago
A worker assigned to the restoration of the Washington Monument is checking the condition of the stone at the very top of the mo
Mnenie [13.5K]

Answer:

Your answer is: K.E = 8.3 J

Explanation:

If the height (h) = 169.2 meters (m) and the mass (m) is 0.005 kilograms (kg) the total energy will be kinetic energy which is equal to the potential energy.

K.E = P.E and also P.E equals to mgh

Then you substitute all the parameters into the formula  ↓

P.E = 0.005 × 9.81 × 169.2

P.E = 8.2908 J

So your answer is 8.2908 but if you round it is K.E = 8.3

7 0
3 years ago
Other questions:
  • If you apply 100.0 N of force to lift an object with a single, fixed pulley, then what is the resistive force?
    8·1 answer
  • Consider the aquatic phosphorus cycle. On land most phosphorus is found in rocks and minerals. In the oceans, phosphorus is depo
    14·2 answers
  • A television that is 83% efficient provides 4 600) of useful energy. How much energy
    14·1 answer
  • Can anybody help me out???!?!?
    15·2 answers
  • ____ is rate of change of position.
    6·2 answers
  • The indices of refraction for violet light (λ = 400 nm) and red light (λ = 700 nm) in diamond are 2.46 and 2.41, respectively. A
    15·1 answer
  • if a student lifts their weight of 450 newtons up a set of stairs 5 meters high, how much work did they do?
    6·2 answers
  • A bird is standing on an electric transmission line carrying 3000 A of current. A wire like this has about 3.0 x 10-5 22 of resi
    10·1 answer
  • Can someone solve it?
    13·1 answer
  • if force accelerate mass with acceleration and the same force accelerate the mass which is quarter of the first one by​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!