- #1
MakeItThrough
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Homework Statement
http://www.webassign.net/CJ/04_75.gif
A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 922 and 1500 N, respectively. The acceleration of the cable is 0.620 m/s2, upward.
(a) What is the tension in the cable below the worker?
1594.9 N
(b) What is the tension in the cable above the worker?
Homework Equations
Force = mass x acceleration
weight = mass x g
The Attempt at a Solution
(a) What is the tension in the cable below the worker?
1594.9 N
(b) What is the tension in the cable above the worker?
I have figured out part a, here is my work:
Since it is accelerating upward, force of tension is greater than the weight.
1500 N = mass x 9.8 m/s^2
mass = 153.1 kg
acceleration = 0.620 m/s^2
FT - 1500 = 153.1(0.620)
FT = 1594.9 N
I used this same method for B, but the answer is wrong. How do I get the tension of the cable above the worker? Thanks a bunch in advance.