You need to open a heavy door that's 40 inches wide. Instinctively, you push near the edge that's 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.
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Four times more force are needed at ten inches from the hinge axis to produce the torque needed to open the door.
what is the equation to do this? help! please. lost. don't understand how you did this
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