Recent content by abramsay

Ok. The second part: (b) Is it possible for the man to climb to the top of the ladder without slippage occurring? Do you think I have to show that with my workings or say it in a statement.

I need an assessment on the homework before I submit it. Homework Statement A Ladder of length L and negligible mass leans again a vertical wall, making an angle θ with the horizontal. A work man of mass M climbs the ladder a distance x from the bottom along the length of the ladder...

But no t was given or told to be found in the question...I think I'm confused.

I got it to be: 0.5m(aw2coswt)2 at A and 0.5m(aw2sinwt)2 at B.

Ok, I got that side. This is for getting the Kinetic energy at points A and B.

Do you think what I did is right? i) I squared both each component of i and j and divided by a2 and b2 respectively to get 1. I assumed at A, the y component is zero, differentiated the x component, squared it and multiply by half the mass. Did the same at point B.

Homework Statement A particle of mass m = 3kg moves in the xy plane under the influence of a force field having potential φ = 12x(3y - 4x) The particle starts at a point with position vector r = 10i - 10j. a) set up the differential equations and conditions describing the motion. b) solve...

Homework Statement A particle of mass m is in the xy plane so that it's position vector is r = acoswti + bsinwtj, where a, b and w are positive constants a>b. (a)Show that, i) The particle moves in an ellipse ii) the force acting on the particle is always directed towards the origin (b)...

Picked up a question and decided to try my hands on it. I got to this point where I'm to find 't' and I got stuck. Anyone wants to help? cos(nt) = 3sin(2nt) + cos(2nt) where n is a constant. I tried making nt=x and use double angles but still not getting through. Thanks