Recent content by sejr

is to express it as a fraction of the acceleration of gravity, so just 9cm/s^2?

makes sense, since the bird has yet to transfer its energy to the branch... Plug in amplitude -sin and multiply with the angular force times time period...? So to get this straight, and I really appreciate all of this, A as in amplitude A= (2(3.14)f)^2 x so A=27x I would plug A= 27x and...

So then, would speed maximum or minimum when the finch hits max acceleration?

Ok great, A as in amplitude or acceleration... sorry, thanks again

Its asking for the max speed and acceleration of the bird, the thing that throws me off is I don't know if it is asking for the speed the bird landed on the branch or the speed which it actually oscillates

or would it be 6? I am confused in what to do with amplitude, if amplitude is 3 cm, that would mean peak to trough is 6 cm? Correct? Is that what I would go with?

wouldn't it be 3?

I don't have a key and I feel like I may be way off but here is what I have so far f= 1/t so F=.83 Hz A= (2(3.14)f)^2 x so A=27x then for X, X=Acos2(3.14)f(t)

Helping a friend out with some physics 1 mid-semester and It's been a little since I have had a physics course... so the question is "If a 30 g bird lands on a slender branch where it oscillates up and down with simple harmonic motion of amplitude 3.00 x 10^-2m and period 1.2 s"... trying...