loss of GPE= gainoflinearKE+gainrotationalKE
You are going to have to decide if the wheel is a hoop, or a solid disk to find the moment of inertia.
Remember, for each 2PI radians of rotation, the wheel moves linearly 2PIr distance.
if w is the angular speed, then rw is the linear velocity.
g*m*10cos25=1/2 I w^2+1/2 M(rw)^
and once you decide solid wheel or hoop, you fill in for I, and then solve for w.
(i)For the wheel of diameter 10 cm, find its final speed after traversing a distance of 10 m down an incline of 25º. Assume it starts from rest.
I know i have to use the conservation of energy but how?
i don't understand where to start off
2 answers
Wow thanks very much
I was usig the wrong formula for loss of PE that's where i went wrong its always helpful to have people to tell you where youve gone wrong
I was usig the wrong formula for loss of PE that's where i went wrong its always helpful to have people to tell you where youve gone wrong