Answer:
D) 200 Lb
Explanation:
As we know that the piano is balanced by six ropes connected to it
by the force balance we can say that tension force of all ropes will combined to balance the weight of the object
So here we can say by force equation we will have
[tex]6T = mg[/tex]
so we will have
[tex]T = \frac{mg}{6}[/tex]
here we know that
[tex]mg = 1200 lb[/tex]
so we will have
[tex]T = \frac{1200}{6} = 200 lb[/tex]
