In: Physics
A 0.49-kg cord is stretched between two supports,7.3m apart. When one support is struck by a hammer, a transverse wave travels down the cord and reaches the other support in 0.83s .
What is the tension in the cord? (Express your answer to two significant figures and include the appropriate units.
v = distance / time
= 7.3 m / 0.83 s
v = 8.79 m/s
T = (v^2)(m) / l
T = (8.79)^2 * (0.49 kg) / 7.3 m)
T = 5.19 N