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Introductory Physics Homework Help
Calculating Elevator Acceleration: Solve for F=ma
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[QUOTE="Jeff Nilsson, post: 6075805, member: 646162"] Actually the equation would be ΣF=9.8m-9.8(1.05m+m) according to my logic but ΣF in this case is the difference between the force of gravity and the force of tension the 9.8m part is to find the force of gravity on the person in the motionless elevator and the 9.8(1.05m+m) part is to find the force acting on the person when the elevator starts accelerating upward to find ΣF you subtract the force of gravity from the fore of tension since it is larger my physics teacher said that sometimes if you set up equations without numbers the variables will cancel out so I tried that and nothing cancels The only number the problem gives me is 1.05 times the original weight when the elevator starts accelerating and since the person is inside the elevator it's a system and the forces acting on the elevator vary directly with the forces acting on the person [/QUOTE]
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Introductory Physics Homework Help
Calculating Elevator Acceleration: Solve for F=ma
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