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
vfiekz [6]
3 years ago
14

(b) Find the position, velocity, and acceleration of the mass at time t = 5π/6.

Physics
1 answer:
Juli2301 [7.4K]3 years ago
4 0
Solution 
x(t) = 8 cos t, x(5π/6)= 8 cos(<span>5π/6)
</span>cos(5π/6)=cos(3π/6 + 2π/6 )=cos(π/3 +π/2)= - sin π/3  (cos (x+<span>π/2)= -sinx)
</span>x(t) = -8sin <span>π/3 = - 4 .sqrt3
</span>v(t) = -8sint = -8sin (π/3 +<span>π/2)= -8 cosπ/3 </span>(sin (x+π/2)= cosx)
v(t) =<span> -8 cosπ/3 = -8/2= - 4 
</span>a(5π/6) = - 8cost = -(- sin π/3)= 4 .<span>sqrt3
</span>a(5π/6) =  4 .<span>sqrt3</span>
You might be interested in
Which is the correct answer ?
hodyreva [135]
D ............................
7 0
3 years ago
Read 2 more answers
Charles Darwin,
grandymaker [24]
The answer is B artificial selection
3 0
3 years ago
Read 2 more answers
The image above was taken by the spacecraft Messenger as it flew by the planet Mercury. The terrain shown in this image is typic
lorasvet [3.4K]
The answer is

C


Hope this helps
7 0
3 years ago
What is the restoring force of a pendulum
salantis [7]

Answer:

the Restoring force causes the vibrating object to go slower going further from the equilibrium position and to go faster as it approaches the equilibrium position. the restoring force is what is causing the vibration The tension force comes from the string tugging on the bob of the pendulum.

Explanation:

3 0
3 years ago
What type of lens does a camera contain?
Savatey [412]
A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.
7 0
3 years ago
Read 2 more answers
Other questions:
  • The wavelength idea of the wave-mechanical model refers to a) the wave nature of electrons b) the wave nature of protons c) the
    9·2 answers
  • Earth is the only planet able to support _____.
    8·1 answer
  • Calculate the phase angle (in radians) for a circuit with a maximum voltage of 12 V and w-50 Hz. The voltage source is connected
    10·1 answer
  • What is the radius of the event horizon for a black hole with a mass 7.5 times the mass of the sun? This distance is called the
    15·1 answer
  • Which of the following forms of electromagnetic radiation are considered non-ionizing? Select all that apply.
    13·1 answer
  • Consult Multiple-Concept Example 11 for background material relating to this problem. A small rubber wheel on the shaft of a bic
    7·1 answer
  • Please PLEASE HELP ASAP
    6·1 answer
  • Collette has a prediction that college students ' immune systems have declined due to the use of hand sanitizers . This idea is
    5·1 answer
  • What happens to water when it changes to ice?
    15·1 answer
  • The gravitational force is always attractive, while the electric force is both attractive and replusive. What accounts for this
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!