1. Newton’s 2nd law Problems

2. A force diagram for a water skier is shown.
(a) What is the mass of the skier? (Hint: you know the weight!)
(b) What is the net force on the water skier? In which direction?
(c) What is the acceleration of the skier?
(d) If the skier was traveling 15 m/s, how long would it take for him to come to a stop?

3. What is the coefficient of static friction if it takes 34 N of force to move a box that weighs 67 N? 

4. Two boys pushed a car. At an applied force of 804 newtons, they were just able to move the 1,340-newton car at a constant speed. What was the coefficient of friction?

5. A huge pile of leaves was wrapped in a tarp in the middle of a lawn
A huge pile of leaves was wrapped in a tarp in the middle of a lawn. The wrapped leaves weigh 580 newtons. The coefficient of friction for the lawn is How much force is required to start sliding the wrapped leaves?

6. A 5. 0 Kg block has a coefficient of friction of. 15 on a flat surface
A 5.0 Kg block has a coefficient of friction of .15 on a flat surface. What is its acceleration if you exert a force of 15 N sideways on it when it is at rest? (Find the friction force first)