Recent content by trikat

Oh! I always forget that constant velocity means that acceleration is zero, which means there's no force. No force means that there's no net work, if I'm understanding you correctly. Thanks for clearing that up!

Well, my specific question was if I have to factor in friction/when I have to factor in friction to work in general. Why 2 out of 3 marks? Because I didn't simplify my answer?

Homework Statement A 51-kg packing crate is pulled with a constant speed across a rough floor with a rope that is at an angle of 43.5 degrees above the horizontal. if the tension in the rope is 115 N, how much work is done on the crate to move it 8.0 m? Homework Equations Do we use frictional...