Homework Help: Physics please help!!

Posted by Megan on Tuesday, March 15, 2011 at 6:12pm.

Piston 1 has a diameter of 0.524cm Piston 2 has a diameter of 5.64 cm. In the absence of friction, determine the force required on piston 1 necessary to support an object, m, with weight 1072 N. (Neglect the height difference between the bottom of the two pistons, and assume that the pistons are massless)

Physics please help!! - bobpursley, Tuesday, March 15, 2011 at 6:14pm
The pressure is the same.

Force1/Area1=Force2/area2

figure the area of each (area=PI (diameter/2)^2)
Physics please help!! - Megan, Tuesday, March 15, 2011 at 6:19pm
Is the 1072N=F2?
Physics please help!! - bobpursley, Tuesday, March 15, 2011 at 6:20pm
yes.
Physics please help!! - Megan, Tuesday, March 15, 2011 at 6:25pm
So F1/2.15E-5=1072N/2.4E-3
F1= 2.15E-5*(1072/2.4E-3)
F1=9.63E10 N

I think I did this right but the answer comes up wrong when I submit it

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