Joe wishes to hang a sign weighing 7.50x10^2 so that cable A, attached to the store, makes a 30.0 degree angle. Cable B is horizontal and attached to an adjoining building. What is the tension of cable B?
|
Joe wishes to hang a sign weighing 7.50x10^2 so that cable A, attached to the store, makes a 30.0 degree angle. Cable B is horizontal and attached to an adjoining building. What is the tension of cable B?
Make a sketch first.
The tension in cable A can be resolved into a vertical and a horizontal component.
The vertical component equals the weight of the sign and the horizontal component equals the tension in cable B.
What do you get?
| All times are GMT -7. The time now is 03:32 PM. |