Recent content by mackeis

Just realized i put the wrong numbers in. THe ball is actuall attached where the radius is .4m and the string above and below are each attached .3m from the centre of the rod. Tension in the upper string is 18N. The questions are the same. Sorry about that.

1. Homework Statement A 1.0kg ball is attached to a vertical rod by two strings. Each string is 1.0m long, and they are attached to the rod a distance of 1.0m apart. The rod-ball-strings setup is rotating about the axis of the rod. As it rotates the strings are taut and form an equilateral...

Sorry, first time using this forum. What i did was εFx=max and i used mg for the masses on either end of the system so in this case i had εFx = m3g+Fgx-Ff-m2g=(m1+m2+m3)a εFx = 8x9.8 + sin20(4x9.8) - .47xcos20(4x9.8) - 2x9.8 = (8+4+2)a 19.6+13.4-17.3-78.4 = (14)a The Fgx and Ff apply...

Homework Statement Three objects are connected on an inclined table. The objects have masses 8.0 kg, 4.0 kg and 2.0 kg as shown, and the pulleys are frictionless. The tabletop is rough, with a coefficient of kinetic friction of 0.47, and makes an angle of 20.0° with the horizontal. The 8.0kg...