Displacement of an object in circular motion

AI Thread Summary
The discussion revolves around solving a physics problem related to an object in circular motion, specifically focusing on angular frequency and displacement equations. The angular frequency was calculated as 1 rad/s. Participants are encouraged to use the equation x = Acos(ωT + δ) for the x-direction displacement and are prompted to determine appropriate values for ω and the phase constant δ. Additionally, there is a need to derive the equation for y-displacement and identify the first time after t = 0 when y equals 0. The conversation emphasizes the application of circular motion equations to find the required displacements.
jami8337
Messages
26
Reaction score
0

Homework Statement


A1. An object undergoing circular motion is pictured below at time t = 0 s.
(a) What is the angular frequency of the object?
(b) What is the equation of the displacement of the object in the x-direction?
(c) What is the equation of the displacement of the object in the y-direction?
(d) What is the y-displacement of the object at t = 0 s?
(e) What is the first time after t = 0 s that y = 0?

I can't put the diagram on here but its a circle on x/y axis with the object in the lower right quadrant where θ=45° and v=2m/s and the r=2m

Homework Equations


T=2∏r/v
ω=2∏/T
x=Acos(ωT+δ)

The Attempt at a Solution


Ive managed to do part (a) using the equations above and got 1rad/s
However I am not sure on the rest, i was thinking of using x=Acos(ωT+δ) but I am not sure how

cheers for any advice
 
Physics news on Phys.org
jami8337 said:

Homework Statement


A1. An object undergoing circular motion is pictured below at time t = 0 s.
(a) What is the angular frequency of the object?
(b) What is the equation of the displacement of the object in the x-direction?
(c) What is the equation of the displacement of the object in the y-direction?
(d) What is the y-displacement of the object at t = 0 s?
(e) What is the first time after t = 0 s that y = 0?

I can't put the diagram on here but its a circle on x/y axis with the object in the lower right quadrant where θ=45° and v=2m/s and the r=2m

Homework Equations


T=2∏r/v
ω=2∏/T
x=Acos(ωT+δ)

The Attempt at a Solution


Ive managed to do part (a) using the equations above and got 1rad/s
However I am not sure on the rest, i was thinking of using x=Acos(ωT+δ) but I am not sure how
Yes, carry on with that. What values do you ascribe to ω and δ? What equation will you write for y(t)?
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top