Jack weighs 170 lbs and is 72 inches tall. He is pulling horizontally on a door...
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Jack weighs 170 lbs and is 72 inches tall. He is pulling horizontally on a door handle situated at his shoulder height. Actually, it is his body weight and lean that creates this pulling action (a hint). His center of mass while standing erect is 65.8 percent of his body height, measured from the floor upwards. The door handle is 60 inches above the ground, and again he is pulling purely horizontally on this handle. If Jack's lean angle is 19.7 degrees and he is leaning back pivoting about his heels. how much force does he apply to the door handle (in pounds)? Jack weighs 170 lbs and is 72 inches tall. He is pulling horizontally on a door handle situated at his shoulder height. Actually, it is his body weight and lean that creates this pulling action (a hint). His center of mass while standing erect is 65.8 percent of his body height, measured from the floor upwards. The door handle is 60 inches above the ground, and again he is pulling purely horizontally on this handle. If Jack's lean angle is 19.7 degrees and he is leaning back pivoting about his heels. how much force does he apply to the door handle (in pounds)?
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