Question

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?

Answer 1

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.