Recent content by azwraith69

ok sorry,, but,, do i really need to add Earth's speed? I need the escape velocity relative to earth.. thanks

Thanks.. what should i do then? should i add Earth's velocity in its orbit? how exactly will i compute for that? thanks... i will submit this after 6 hours,, so i really need direct answers.. can't reply anymore.. thanks in advance

Homework Statement A projectile is fired from the Earth in the direction of the earth’s motion around the sun. what minimum speed must the projectile have relative to the Earth to escape the SOLAR SYSTEM? Ignore the earth’s rotation. Homework Equations escape velocity = sqt[(2G x...

thanks... i overlooked it since i always choose the point of contact with the ground as the pivot.. normal force = 150N ?? :)

Homework Statement see the attachment below...Homework Equations net force = 0, net torque = 0 normal force(ground) = ? The Attempt at a Solution well, so far,, net force(y) = normal force(floor) - weight(man) - weight(ladder) + ??(force exerted by hinge?) net force(x) = 0 ( ?? ) Choosing...

ok,, i know the theorems,, upper/lower bounds,, etc.. and i know that this has no rational roots.. i just want to know methods to find irrational real, or imaginary roots for such irreducible equations... if there is really none,, ok... but i hope there is.. thx hallsofivy

Homework Statement f(x)=24x7-13x6-19x5+7x4-7x3+5x2+72x-54 Find all the roots.. Homework Equations +-(p/q)...for rational roots The Attempt at a Solution i tried factor theorem,, and synthetic division for the possible roots..i've used uppe/lower bounds but i can't get a single...