Recent content by Devilwhy

i did draw the region and rotate but how can i do the integration? i don't know how to deal with the inner integration now...

Homework Statement i am done with this question and get the answer 37 but it required us to change the order of integrationHomework EquationsThe Attempt at a Solution i have no idea... i tried to do something like [/B] or but none of them can obtain the answer 37

what if there is another force F against direction of mgsin(θ)? i got this equation from my textbook(the object is rolling down) F-mgsin(θ)=-ma

but i found the first statement from this textbook

For question about the falling object we will always take T=mg+ma so we take mg and ma positive for question about the object rolling down the inclined plane we will say that mg sin theta - ma=0 although mg sin theta and ma is still on the same direction, we take mg sin theta positive but we...

Homework Statement Homework EquationsThe Attempt at a Solution 4a at x=-2 F=0N Potential energy=integration of F(-2)=Integration of 0=0 so it will reach minimum at x=-2? b. integration of F(-2)-integration of F(-2-h)=m(v-0)^2/2 am i right? 5 Centripetal force=mv^2/r=mgsinθ-Fn(normal force)...