Tension in a chain.?

Question

The tension T at each end of the chain has magnitude 25 N. What is the mass of the chain?

The chain makes a 37 degree angle with the x axis at the endpoints.

Answer 1

Your equation is

2(T)(sin 37) = mg

where

T = tension in the chain = 25 N

m = mass of the chain

g = acceleration due to gravity = 9.8m/sec^2

Substituting values,

(2)(25)(sin 37) = m(9.8)

Solving for "m",

m = (2)(25)(sin 37)/9.8

m = 3.07 kg.