1. Add these vectors and write the result in polar form: (13i + 5.0j) + (3.0i - 17j)

2. Galois drove 60.0 km due west in 5.00 hours and then drove 43.0 km due north in 3.00 hours. What was his displacement? What was his average velocity?

3. An object moving in the positive x direction went from a velocity of 89 m/s to a velocity of 19 m/s in 7.0 seconds. What was the object's average acceleration?

4. A car traveling in a straight line goes 20 km in 13 minutes. What is its average speed in km per hour?

5. A block is pulled to the right across a level surface at a constant velocity by a horizontal force of 48 newtons. The weight of the block is 91 newtons. What is the coefficient of the kinetic friction between the block and the surface?

5. A block has a mass of 81.0 kilograms. The coefficient of static friction between the block and the level floor on which it rest is 0.621. A horizontal force of 398 newtons is applied to the block to the right. Will the block?