Recent content by asourpatchkid

go for the ti-89. you won't regret it! INTEGRATION.

all right, i just used the integral. thanks a lot!

y''-y'-30y=ln(t) My attempt: i tried to use the method of undetermined coefficients. y''-y'-30y=ln(t) Y(t)=A lnt Y'(t)=A/t Y''(t)= -A/t^2 I also tried: Y(t) = A ln(t) + B 1/t + C 1/t^2 now I am stuck...any help??

Sphere/disk rolling down an incline HELP! Homework Statement a ball, or sphere with a radius of R and mass Mis rolling down an incline with a height of H and an angle of \Theta how long does it take to get to the bottom Homework Equations Conservation of mechanical energy Kf +...

ok i got : x = (v_0/g) (v_0 sin2th - 2y cos th). if i take the derivative of his equation (velocity) how would i find the derivitve of "y" ??

so then i come up with y_2 = x tan \theta - \frac {4.9x^2}{(v_0^2)(cos /theta^2)} if i set that equal to x tan \phi , i can simplify to tan \phi = tan \theta - \frac {4.9x}{(v_0^2)(cos^2 \theta)} what would i do next??

A ball is hit at an angle \theta to the horizontal, from the base of a hill \phi degrees in incline. The ball strikes the hill at a horizontal distance x measured from the launch point. Determine the value of \theta that will result in the largest possible value of x . well i started out...