Elevator problem

  • Thread starter kelseyE
  • Start date
  • #1
4
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Homework Statement



An elevator cable can hold a maximum of 10kN and has a maximum accelleration of 2m/s2. Determine the maximum mass of the elevator and participants.


i need some help, cant figure this out at all. thanks in advance
 

Answers and Replies

  • #2
1,506
18
The obvious thing here is to use F = ma
You know F and you know a.... find m.
If you get stuck get back to me
 
  • #3
4
0
I tryed putting them just straight in but that does not work.

I forgot to put the multiple choice, it might help

A. 1050kg
B. 1280kg
C. 0.8466kg
D. 1.28kg
E. 890kg
F. 10009.81kg
G. 846.74kg
H. 9.901kg
I. 650kg
 
  • #4
PhanthomJay
Science Advisor
Homework Helper
Gold Member
7,165
507
Identify the magnitude and direction of the forces acting on the elevator, both known and unknown. There are 2 forces acting in the vertical direction. Find the net force, and use Newton's 2nd law, F_net = ma.
 

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