Recent content by INeedHelpPls

what does the comma mean?

okay thanks a lot.. but i don't understand sigmaro's working :( ACW= anti-clockwise and CW =clockwise.. something like taking upwards as + and downwards as -

Homework Statement A uniform board is hinged at A and supported by a vertical rope at P, 6.0m from A. A man of weight 700N stands at the end of the board at point B, which is 15.0m from hinge A. If weight of board is 50N,calculate the tension T in the rope.Homework Equations By principle of...

using v squared = u squared + 2as, a = (v squared - u squared)/2s where v= final velocity u= initial velocity s= displacement a = accel