Recent content by pizza_dude

okay...so taking out the v_0 \text { and } \mu_x , \mu_y the equations are correct? but how do the spring constants come into play?

after that it says it's an inclined plane.

1. Homework Statement A student kicks a puck with initial speed v_0 so that it slides straight up a plane that is inclined at an angle \theta above the horizontal. the incline has a coefficient of friction (both static and kinetic) of \mu Write down Newton's second law for the puck and...

\vec A = (x, y, z) \vec r which i believe is equal to (x \hat e_{1} + y\hat e_{2} + z\hat e_{3}) which is the second half of \vec A mentioned in the problem

\hat r is the answer i believe you may be looking for. I am not quite sure how to physically interpret \vec A . i just know that it's some vector along the surface of the sphere. sorry if I am making this difficult.

d\vec a is perpendicular to the surface of the area (2 possible directions).

Homework Statement find the values of the integral \int_{S} \vec A\cdot\ d\vec a where, \vec A\ = (x^2+y^2+z^2)(x\hat e_{1}+y\hat e_{2}+z\hat e_{3}) and the surface S is defined by the sphere R^2=x^2+y^2+z^2 Homework Equations first i must evaluate the integral directly, so i don't...