You push on a box with a force of 300 N directly north. Another person pushes the box with a force of 600 N directly east. What is the resultant force?

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

What’s #16 asking me and how do i solve it?