posted by Randy .
A dog is tugging forward on a leas held by a physics student who is standing still. The dog is tugging with a force of 63N. The student estimates the leash to be at an angle of 25 degrees above the ground. What is the tension in the leash?
That will depend upon whether the 63 N force applied by the dog is applied to the leash, or parallel to the ground by its legs. In the former case, the answer is 63N, regardless of angle.