What is the acceleration of the elevator?

[Muteb]

The tension on a string from which a 4.0 kg object is suspended in an elevator is equal to 44.0 Newton.

What is the acceleration of the elevator?

Is this answer rigth

44 N - (4.0 kg X 9.8) = a (4.5 + 4) I think the 4.5 is mass of elevator and 4 the mass of the object which is suspended.

Acceleration = 0.57 m/s^2

 

[Hootenanny]

The tension on a string from which a 4.0 kg object is suspended in an elevator is equal to 44.0 Newton.

What is the acceleration of the elevator?

Is this answer rigth

44 N - (4.0 kg X 9.8) = a (4.5 + 4) I think the 4.5 is mass of elevator and 4 the mass of the object which is suspended.

Acceleration = 0.57 m/s^2

You're almost there. Why do you need to include the mass of the elevator and where do you pull that value of 4.5kg from?

 

[Muteb]

I think this is ok now isn't it?

F=4.8N
F=ma
4.8kg*m/s^2=4kg*a
a=1.2m/s^2 [u

 

[Hootenanny]

I think this is ok now isn't it?

F=4.8N
F=ma
4.8kg*m/s^2=4kg*a
a=1.2m/s^2 [u

Looks good to me