what are the equations i can use with the angle??
for Kinetic energy would it be, (1/2)mv^2 cos (theta) ?? or would it be sin?
for Potential Energy : 1/2 k x^2 ?? no angel into account?
and for the force do i take in the angel to account?? like, mgcos(theta), so would it be, kl cos(theta)?
sry missed a couple of info.
The spring is at normal rest and length = 5cm, and then compressed 2.5cm.
I need to find the forces that the spring releases the box at, and at what velocity it is, then how far up the ramp the box goes.
ok, I've been at this for quite some time. its pretty difficult for me and need some help fast.
The question is
A 2kg box lies at rest on an incline of 30 degrees with a friction of .2 . The box slides down, and compresses a spring of k=10n/m. What is amount of forces that shoots up the box...