Physics homework help please?

Posted on 2014-04-22 07:05:00 in Physics by A-28-OZ-SLURPEE

the assistant principal likes to slide down the hallway in his socks. he weighs 850 N and the coefficient of sliding friction between his socks and the floor is .120. what is the force of friction opposing his motion?



2 physics book weigh 1.70 N are on the table. one lies flat and one stands on its end. which exerts a greater force on the table? which applies a greater pressure? if each book measures 26cm x 21 cm 2 4cm calculate the pressure applied by each.



what force must you exert on a ball point pen in order to apply a pressure of .0067 N/mm^2 on a piece of paper if the ball of the pen has a surface area of 3mm^2 touching the paper?

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