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PHYSICS NEED HELP PLEASE

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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.

  • PHYSICS NEED HELP PLEASE -

    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 -

    what is the equation to do this? help! please. lost. don't understand how you did this

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