1. Three sticks are arranged to form a right triangle. If the lengths of the three sticks are 0.47 m, 0.62 m and 0.78 m, what are the three angles of the triangle? 2. A runaway dog walks 0.64 km due north. He then runs due west to a hot dog stand. If the magnitude of the dog's total displacement vector is 0.91 km, what is the magnitude of the dog's displacement vector in the due west direction? 3. A train with a constant speed of 16 m/s passes through a town. After leaving the town, the train accelerates at 0.33 m/s? until it reaches a speed of 35 m/s. How far did the train travel while it was accelerating? 4. Which one of the following situations is not possible? A body travels with a constant acceleration and a time-varying velocity. A body travels with a northward velocity and a southward acceleration. A body travels with a constant velocity and a time-varying acceleration. A body travels with a northward velocity and a northward acceleration. 5. A car is stopped at a red traffic light. When the light turns to green, the car has a constant acceleration and crosses the 9.10-m intersection in 2.86 s. What is the magnitude of the car's acceleration? 6. A ball is shot straight up from the surface of the earth with an initial speed of 19.6 m/s. Neglect any effects due to air resistance. Determine the velocity of the ball at t = 3.00 seconds. 7. A ball is shot straight up from the surface of the earth with an initial speed of 19.6 m/s. Neglect any effects due to air resistance. Determine the velocity of the ball at t = 3.00 seconds. 8. A projectile is fired horizontally with an initial speed of 50.0 m/s. Neglect air resistance. What is the speed of the projectile 3.00 s after it is fired