A worker drags a box of mass 50 kg that is initially at rest across a horizontal floor. The worker attaches a rope to the box and pulls on the rope so that the rope makes a constant angle of 36. 8o above the horizontal. The static and kinetic friction coefficients between the box and the floor are 0. 18 and 0. 10, respectively. It takes the worker 5. 12 seconds to move the box 10 m from rest.

Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.