Recent content by skyrolla

I thought that kinematic equation was only applicable to a constant force, not a position-dependent varying one?

Homework Statement 4. A particle of mass m is experiences a Force that attracts the particle following F(x) = -k*x^-2 (an inverse square relationship) where x is the distance from an origin at x = 0 and k is a positive constant. If the particle is released from rest at x = d, how long...

Thanks. After figuring out I had the wrong component, I was able to solve the problem.

Symmetry in the x and y directions makes sense, as an equal amount of ring and angle phi are distributed to both the positive and negative halves. However the field would certainly have a Z component at points along the Z axis, as the full ring exerts charge in either a positive or negative z...

Homework Statement A thin rubber ring of radius R lies in the xy-plane and is centered at the origin. The ring carries line charge density λ=λo*sin(Ø), with a constant λo with units C/m. define tan(Ø)=y/x. Calculate the magnitude and direction of the electric field E(z) created by the ring...