Force Exerted by Floor on 70kg Person in Elevator

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SUMMARY

The discussion centers on calculating the force exerted by the floor on a 70kg person in an elevator accelerating downwards at -3 m/s². According to Newton's second law, the net force acting on the person can be calculated using the formula F = ma. The gravitational force acting on the person is 686 N (70kg * 9.8 m/s²), and the downward acceleration of the elevator results in a net force of 210 N acting upwards, leading to a total force exerted by the floor of 476 N (686 N - 210 N).

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contlee
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Suppose a 70kg person is in an elevator. The acceleration of the elevator is -3m/s/s. What force would the floor exert on the person? Please show work...
 
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contlee said:
Suppose a 70kg person is in an elevator. The acceleration of the elevator is -3m/s/s. What force would the floor exert on the person? Please show work...
Contlee, welcome to PF! Please read the rules of this forum...it is you who must show the work. Examine all the forces acting on the person and use Newton's laws. If you show your attempt, someone will assist you in your arriving at the correct answer.
 

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