Question

A box of cereal is pushed with an applied force of 2.4 N [W] across a table. If the cereal box has a mass of 2.5 kg and the box accelerates at 0.41 m/s^2 [W], The coefficient of friction for the table top is___.(give your answers with the correct number of significant digits)

Note: Let West be positive

Answer 1

According to Newton's second law:

$$ma=F-f,\\ ma=F-\mu mg,\\ \mu=\frac{F-ma}{mg}=0.06.$$