Monday
December 22, 2014

Homework Help: physics

Posted by anna on Thursday, November 4, 2010 at 9:26pm.

img145.imageshack.us/img145/7130/picture1n.png

this is basically the diagram to my question


A person of mass m = 62 kg is doing push-ups as shown in the attached figure. The distances are a = 91 cm and b = 60% of l1. Calculate the vertical component of the normal force exerted by the floor on both hands.

Can someone please explain this problem to me i don't know how to approach it..i understand that i will have to use times each distance by the weight but i dont understand what to do next?

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