A 70 kg person standing in an elevator is accelerated upwards at a rate of 2.5 m/s2. What is the force of the elevator on the person?

770 N
250 N
875 N
-525 N

Respuesta :

Your answer will be
875N
aachen

Answer:

F' = 875 N

Explanation:

It is given that,

Mass of the person, m = 70 kg

Acceleration of the elevator, [tex]a=2.5\ m/s^2[/tex] (accelerating upward)

We need to find the force of the elevator on the person. When the elevator is moving upward the force acting on it is given by :

[tex]F'=ma+mg[/tex]

g is the acceleration due to gravity

[tex]F'=m(a+g)[/tex]

[tex]F'=70\times (2.5+10)[/tex]

F' = 875 N

So, the force of the elevator on the person is 875 N. Hence, this is the required solution.