Picture this....a car stuck in the mud and a tree some distance away but exactly parallel. A man wishes to pull the car out of the mud by tying a rope to the tree and to the car. (It forms a v with the man at the tip) It requires a force of 10,000N to free the car from the mud. The man is capable of applying a maximum force of 1000 N. The theta angle I am trying to find is between the rope connected to the car and the imaginary line between the car and the tree....if you put a line on top of the v I mentioned earlier making it an upside down triangle....then theta would be the angle on the left.....please I'm not looking for just an answer...I want to know how to do this...I have worked for hours and all my answere do not seem right....thanks
2007-02-07 15:55:36 · 2 answers · asked by Kimmy D 1 in Science & Mathematics ➔ Physics
Why use a rope?? call a tow truck
2007-02-07 15:58:37 · answer #1 · answered by Jhary G 2 · 0⤊ 1⤋
By making a V with the rope you are changing the direction of the pulling force.
What ever be the angle the magnitude of the pulling force will not change.
That is you cannot make 1000 N force into 10 000 N force by this method.
Only if you do apply 10000 N the car will move.
In that case you can choose any angle convenient for you.
This is a kind of simple machine like pulley whose mechanical advantage is one.
In such system no change in the magnitude of the force applied. Only the direction of force is changed.
2007-02-08 02:44:11 · answer #2 · answered by Pearlsawme 7 · 0⤊ 0⤋