Homework Help: PHYSICS NEED HELP PLEASE

Posted by Anonymous on Thursday, December 13, 2012 at 7:50pm.

You need to open a heavy door thats 40 inches wide. Instinctively, you push near the edge thats the farthest from the hinges. If instead, you had pushed at a point only 10 inches in from the hinges, how much harder would you have had to push to open the door at the same speed? explain your answer.

PHYSICS NEED HELP PLEASE - drwls, Thursday, December 13, 2012 at 7:56pm
Four times more force are needed at ten inches from the hinge axis to produce the torque needed to open the door.
PHYSICS NEED HELP PLEASE - Anonymous, Monday, December 17, 2012 at 6:08pm
what is the equation to do this? help! please. lost. dont understand how you did this

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