In a pickup game of dorm shuffleboard, students crazed by final exams use a broom to propel a calculus book along the dorm hallway. If the 3.5 kg book is pushed from rest through a distance of 1.20 m by the horizontal 25 N force from the broom and then has a speed of 1.75 m/s, what is the coefficient of kinetic friction between the book and floor?

Explanation

To find the coefficient of kinetic friction between the calculus book and the floor, we can follow these steps:

### Step 1: Identify the known values
- Mass of the book, \( m = 3.5 \, \text{kg} \)
- Distance pushed, \( s = 1.20 \, \text{m} \)
- Applied force, \( F = 25 \, \text{N} \)
- Final speed, \( v = 1.75 \, \text{m/s} \)
- Initial speed, \( u = 0 \, \text{m/s} \) (since it starts from rest)
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