February 23, 2017

Homework Help: Physics

Posted by Andrea on Wednesday, November 14, 2007 at 6:22pm.

A box of mass 1kg is placed on a table and is connected to a hanging mass m by a string strung over a pulley. If the coefficient of kinetic friction between the box and the table is .3 and the box slides at a constant speed of .5m/s what is the weight of the hanging mass?

Would the acceleration of the 1kg box be zero? Since direction is constant and the speed is also constant. Thus to find the weight of the hanging mass:

F_box=Fg of hanging mass
m= 0kg but this is not possible what did I do wrong?

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