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
alexandr402 [8]
3 years ago
14

Se lanza un cuerpo de 25 kg sobre un plano horizontal, con una velocidad de 20 m/s. Si el coeficiente de rozamiento es de 0,4 ca

lcula el valor de la fuerza de rozamiento y el espacio que recorrerá el cuerpo hasta pararse
Physics
1 answer:
Alex Ar [27]3 years ago
8 0

Answer:

1. 98 N

2. 51.0 m

Explanation:

masa 25 kg

velocidad 20 m/s

coeficiente de rozamiento .4

<u>Fuerza de rozamiento:</u>

mu * N, where mu = coeficiente de rozamiento, N = fuerza normal

Calcula N:

F = ma = 25 * -9.8 = -245 N

F rozamiento = mu * N = .4 * -245 = -98 N

<u>Espacio que recorrerá:</u>

F rozamiento = ma

-98 = 25a

a = -3.92 de-aceleración de la fuerza

vf = 0 m/s

vf = at + vi

0 = -3.92t + 20

t = 5.10 seg

x = 1/2 at^2 + vi*t

  = 1/2 * -3.92 * 5.10^2 + 20*5.10

  = 51.0 m

 

You might be interested in
Which have the longest wavelengths--light waves, x-rays, or radio waves?
Tresset [83]

US Open
US Open live
US Open live stream
US Open live streaming
US Open live online
US Open live golf
US Open live coverage
US Open live feed
US Open live leaderboard
US Open live Golf
US Open live 2018
US Open live streaming fox sports
US Open live streaming Watch free
https://livevsonlinehd.de/usopen2018/
https://livevsonlinehd.de/usopen2018/
US Open 2018
US Open 2018 live
US Open 2018 live stream
US Open 2018 live streaming
US Open 2018 live online
US Open 2018 live golf
US Open 2018 live coverage
US Open 2018 live feed
US Open 2018 live leaderboard
US Open 2018 live Golf
US Open 2018 live
US Open 2018 live streaming fox sports
US Open 2018 live streaming Watch free
https://livevsonlinehd.de/usopen2018/
https://livevsonlinehd.de/usopen2018/
US Open odds
US Open golf
US Open golf 2018
US Open golf 2018 odds
US Open golf 2018 leaderboard
US Open golf 2018 tickets
US Open golf 2018 tee times
US Open golf 2018 prize money
US Open golf 2018 tv schedule
US Open golf 2018 dates
US Open golf 2018 live streaming
US Open golf 2018 live
US Open golf 2018 live coverage
US Open golf 2018 live stream
US Open golf 2018 live leaderboard
US Open golf 2018 live scores
US Open golf 2018 live feed
US Open golf qualifying
US Open golf tournament
US Open golf live
US Open golf live tickets
US Open golf tv schedule
https://livevsonlinehd.de/usopen2018/
https://livevsonlinehd.de/usopen2018/
US Open golf odds
US Open odds 2018
US Open golf
US Open Golf
US Open tickets
US Open Golf 2018 schedule
US Open 2018
US Open 2018 Golf
US Open 2018 golf
US Open 2018 dates
US Open 2018 schedule
US Open 2018 prize money
US Open 2018 odds
US Open 2018 results
US Open 2018 leaderboard
US Open 2018 tickets
US Open 2018 live
US Open 2018 live stream
US Open 2018 live streaming
US Open 2018 live online
US Open 2018 live golf
US Open 2018 live scores
US Open 2018 live leaderboard
US Open 2018 live coverage
US Open 2018 live free
Golf US Open 2018 live
USga US Open 2018 live coverage
Watch US Open 2018
Watch US Open 2018 online for free
Watch US Open 2018 golf
Watch US Open 2018 Golf
Watch US Open 2018 online
https://livevsonlinehd.de/usopen2018/
https://livevsonlinehd.de/usopen2018/
Watch US Open 2018 live
Watch US Open 2018 live stream
Watch US Open 2018 live online
Watch US Open 2018 live golf
Watch US Open 2018 live Golf
Watch US Open 2018 live online free
Watch the Watch US Open 2018 live
Watch US Open Golf 2018 live
Watch US Open
Watch US Open live
Watch US Open live stream
Watch US Open live online
Watch US Open live golf
Watch US Open live on internet
Watch US Open live Golf
Watch US Open live 2018
Watch US Open live espn
Watch US Open live coverage
Watch US Open live fox
Watch US Open live online free
Watch US Open live golf free
Watch US Open Golf
Watch US Open golf on internet
Watch US Open golf live online free
Watch US Open golf live on fox sports
Watch US Open golf free
Watch US Open golf online free
https://livevsonlinehd.de/usopen2018/
https://livevsonlinehd.de/usopen2018/
Watch US Open golf live free
Watch US Open golf 2018 live golf
Watch US Open golf live
Watch US Open Golf 2018 online free
Watch US Open Golf live
Watch US Open golf 2018 live
Watch US Open Golf 2018
Watch US Open golf 2018
Watch US Open online free
Watch US Open fox
Watch US Open free
US Open Championship
US Open Championship golf channel
US Open Championship 2018
US Open Championship Winners
US Open Championship leaderboard
US Open Championship live
US Open Championship live stream
US Open Championship live streaming
US Open Championship live coverage
US Open Championship 2018
US Open Championship 2018 live
US Open Championship 2018 live streaming
US Open Championship 2018 golf
Watch US Open Championship
Watch US Open Championship live
Watch US Open Championship live streaming
Watch US Open Championship 2018
Watch US Open Championship 2018 live
Watch US Open Championship live streaming
Watch US Open Championship online
Watch US Open Championship live golf
Watch US Open Championship 2018 golf
https://livevsonlinehd.de/usopen2018/
https://livevsonlinehd.de/usopen2018/
Watch US Open Championship 2018 live coverage


6 0
3 years ago
the rock of 10 kg is falling near the Earth's surface.assume that g =10N/kg and the is no air resistance. what is the accelerati
Ivanshal [37]

Answer:

kya faltu sawal h repetitive g=10N/kg

5 0
3 years ago
Um ladrão tenta fugir sozinho carregando em suas mãos uma mala cheia de barras de ouro. A densidade do ouro é igual a 20 g/cm³,
Roman55 [17]
I believe the answer to your question is A
4 0
3 years ago
Sapting Leng You have a string with a mass of 13.7 q. You stretch the string with a force of 8.39 N, giving it a length of 1.87
marshall27 [118]

Answer:

a)  \lambda=0.935\ \textup{m}

b) f=36.19\approx 36\ \textup{Hz}

Explanation:

Given:

String vibrates transversely fourth dynamic, thus n = 4

mass of the string, m = 13.7 g = 13.7 × 10⁻¹³ kg

Tension in the string, T = 8.39 N

Length of the string, L = 1.87 m

a) we know

L= n\frac{\lambda}{2}

where,

\lambda = wavelength

on substituting the values, we get

1.87= 4\times \frac{\lambda}{2}

or

\lambda=0.935\ \textup{m}

b) Speed of the wave (v) in the string is given as:

v =f\lambda

also,

v=\sqrt\frac{T}{(\frac{m}{L})}

equating both the formula for 'v' we get,

f\lambda=\sqrt\frac{T}{(\frac{m}{L})}

on substituting the values, we get

f\times 0.935=\sqrt\frac{8.39}{(\frac{13.7\times 10^{3}}{1.87})}

or

f=\frac{33.84}{0.935}

or

f=36.19\approx 36\ \textup{Hz}

5 0
2 years ago
for an object that is speeding up in the positive direction, what does the displacement vs. time graph look like?
slava [35]

Answer:

The speeding up is steady, it is a parabola (a=V*t+(at^2)/2), and give it's an equation in connection to time, at that point, it is conceivable to discover the separation recipe by utilizing more substantial amount mathematics(integrals).

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • PLZ HELP ME ASAP 30 POINTS
    6·1 answer
  • Why is Mars surface temperature so low?
    12·2 answers
  • When light waves pass through the lenses of a pair of glasses, the light waves ______________ .
    10·1 answer
  • Explain the advantages of using parallel circuits to series circuits in wiring rooms
    9·1 answer
  • The resolution of a microscope describes the scale of the smallest detail that is clearly observable through the microscope. For
    10·1 answer
  • Two pans of a balance are 24.1 cm apart. The fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest
    15·1 answer
  • What is measurement​
    5·1 answer
  • Explain in detail what energy transfers happen when you cook sausages on a camp fire burning wood?
    10·1 answer
  • The image formed by the pinhole camera is smaller than that of the object <br> true or false
    13·1 answer
  • Chen is testing the friction of three surfaces. he pushes the same ball across three different surfaces with the same force and
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!