**Calculations:**

The formula for friction is Ff = μ x FN where FN = mg. Assuming g = 9.8 m/s^2, answer the following questions.

1. If the force of friction between a box and the ground is 30 N and the mass of the box is 100 kg, what is μ?

2. If the coefficient of friction between a 50 kg object and the ground is 0.11, what will be its maximum frictional force?