Recent content by thirteenheath

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    Derivative of inverse function?

    Consider the function f: R-->R where F(x)= x, if x<1 x², if 1<x<9 (read x <or equal to 1 and x< or equal to 9) 27*sqrt(x), if x>9 I know that f is not differentiable at x=1 and x=9 because the derivative at each one of these points don't exist once the lateral limits don't coincide.(Is...
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    Pulley system (ideal pulley) Find the angle with vertical line

    Thanks ehild! Oh I see...So if I understood we'll have T1=T2*cosθ T1=T2*sinθ Then cosθ=sinθ and θ=45°. Plus, through the last two equations in the previous post we find that a=m1*g/(m1+m2). Now I just need to replace the acceleration in any of the previous equations to...
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    Pulley system (ideal pulley) Find the angle with vertical line

    Ideal pulley and strings, no friction.The pulley and the second string don't move. I need to find the numerical value of theta, the acceleration of the two blocks and the tensions.Accelerations and tension must be given in terms of m and g.I guess 2T1=T2 T1=m2*a m1*g-T1=m1*aTo find theta I need...
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