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
IgorC [24]
4 years ago
9

A crate is pulled to the right with a force of 85 N, to the left with a force of 115 N, upward with a force of 565 N, and downwa

rd with a force of 236 N.
1. Find the magnitude and direction of the net external force on the crate.
Physics
1 answer:
balandron [24]4 years ago
3 0

Answer:

330.4 N and  95.2^{\circ}counterclocwise to the x direction

Explanation:

Sum of forces in vertical are equal, let movement to right and upwards be positive while left and downwards be negative

Net force in horizontal direction is 85-115=-30 N

Net force in vertical direction is 565-236=329 N

Resultant force=\sqrt {(-30)^{2}+329^{2}}=330.3649497 N\approx 330.4 N

Direction=tan^{-1}\frac {329}{-30}=-84.78986932\approx -84.8^{\circ}

180-84.8=95.2

Therefore, direction is 95.2^{\circ}counterclocwise to the x direction

You might be interested in
What is the simplest relationship between the angular wavenumber k and just one of the other kinematic variables?
Inessa [10]

Answer : k=\dfrac{\omega}{k}

Explanation :

The word kinematics means the study of motion. Kinematic variables gives the description of the motion of the body.

Displacement, Velocity, acceleration and time are associated with the motion of particle.

Wavenumber is defined as the frequency of wave, which is measured in cycles per unit distance.

Wave number is also defines as:

k=\dfrac{2\pi}{\lambda}

where, \lambda is wavelength

k=\dfrac{2\pi}{\lambda}\times \dfrac{T}{T}

since, \dfrac{2\pi}{T}=\omega \ and\ \dfrac{1}{V}=\dfrac{T}{\lambda}

So, k=\dfrac{\omega}{V}

Where, \omega is angular frequency and V is velocity of wave.

Hence, the  relationship between the angular wavenumber k and and kinamatic variable V is

k=\dfrac{\omega}{V}

6 0
3 years ago
A student decides to give his bicycle a tune up. He flips it upside down (so there's no friction with the ground) and applies a
aleksklad [387]

Answer:

V=9.2565m/s

Explanation:

From the question we are told that:

Force F = 34 N  

Time t = 0.6 s

Length of pedal l_p=16.5cm \approx0.165m

Radius of wheel r = 33 cm = 0.33 m

Moment of inertia, I = 1200 kgcm2 = 0.12 kg.m2

Generally the equation for Torque on pedal \mu is mathematically given by

\mu=F*L\\\mu=34*0.165

\mu=5.61N.m

Generally the equation for  angular acceleration \alpha is mathematically given by

 \alpha=\frac{\mu}{l}

 \alpha=\frac{5.61}{0.12}

 \alpha=46.75

Therefore Angular speed is \omega

\omega=\alpha*t

\omega=(46.75)*(0.6)

\omega=28.05rad/s

Generally the equation for  Tangential velocity V is mathematically given by

V=r\omega

V=(0.33)(28.05)

V=9.2565m/s

 

5 0
3 years ago
Raphael refers to a wave by noting its wavelength. lucinda refers to a wave by noting its frequency. which student is correct an
blsea [12.9K]
They are both right because you can note both things, I mean Raphael and Lucinda, both has a right statement or explanation about the wave. Wave by nothing is both for its wavelength and for its frequency. So Raphael and Lucinda are both correct because you can note both wavelength and frequency.
7 0
4 years ago
What type of<br> Soil Jake need to plant the cactus?
Harrizon [31]
He would need to grow. it in sand or grit since Cactus's are usually grown in dry soil like sand.
8 0
4 years ago
Which sporting event is symbolic of American culture?
Zolol [24]
Baseball is known as americas past time
7 0
4 years ago
Read 2 more answers
Other questions:
  • The Faraday disk was an early example of what?
    13·1 answer
  • Do we "spend" anything in a resistance? Like for example: Current, mass, energy, field, potential, momentum? If the answer is ye
    7·2 answers
  • Describe the trichromatic of color vision
    10·2 answers
  • When air is heated, it will MOST likely
    14·2 answers
  • According to the _____ model, the solar system formed from a cloud of dust and gas.
    12·2 answers
  • What genetic information cannot be obtained from the punnett square?
    7·1 answer
  • Building a mass transit system is likely to have which of the following effects
    13·1 answer
  • I need help it is about physics
    8·2 answers
  • Please help me with this question:)
    14·1 answer
  • My question is attached!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!