1. A light rail train starts from a terminal station. The train goes south for 1165 meters, then east for 442 m, then south for 410 m, then east for 650 m, where it arrives at the next station. What is the magnitude of the displacement vector from the terminal station to the next station?1820 m1700 m1920 m1560 m2. An airplane is heading directly east at a velocity of 91.8 m/s. The wind is blowing the plane southward at a speed of 16.9 m/s. What is the airplane's relative velocity to an observer on the ground?93.3 m/s, 10.4? east of south97.9 m/s, 16.0? south of east97.9 m/s, 16.0? east of south93.3 m/s, 10.4?south of east3. An airplane takes off, and travels forward at an angle of 11.2? above the horizontal. After following this path for 865 meters, the pilot changes the angle of flight to 6.5? above the horizontal, and follows this path for 1240 meters. After these two legs, what is the helicopter's horizontal distance from the point of take off?2150 m284 m2080 m308 m4. Paula has walked in a straight line, 30.5? north of west, for 1650 meters. How far south and east should she walk to return to her original location?779 m south, 1290 m east1290 m south, 779 m east1420 m south, 837 m east837 m south, 1420 m east5. Sven is going to try out for his high school's soccer team, so he is practicing his kicking skills. On one practice kick, he launches the soccer ball with a velocity of 17.9 meters per second, and at an angle of 21.6? above horizontal. Assuming the ball lands back on the field, what is the ball's hang time in the air?2.19 s1.34 s1.76 s2.04 s 6.Sylvia is in a kayak, and she is rowing west at a speed of 3.10 m/s, with respect to the water. Meanwhile, the water is flowing east at a speed of 0.95 m/s. From the reference point of an observer on the coast, what is Sylvia's velocity vector?4.05 m/s east4.05 m/s west2.15 m/s west2.15 m/s east7. How can the Pythagorean theorem be used to solve for the magnitude of a resultant vector?8. A particle is moving through an electric field. Starting from the origin, it moves 4.19 cm in the positive y-direction, then it moves 7.43 cm in the negative x-direction. What is the direction of the resultant vector?29.4? below the positive x-axis29.4? above the negative x-axis29.4? above the positive x-axis29.4? below the negative x-axis9. Why is it important to define a frame of reference when doing calculations in physics?10. A man and a dog are fighting over a chew toy. The man pulls east with a force of 14 N. The dog pulls the opposite direction with 7 N of force. What is the net force?21 N west21 N east7 N east7 N west11. What are some of the characteristics that you would look for to identify projectile motion?12. Rhonda is looking for a campsite for the night. From her parking spot, she walks north for 212 meters, then turns and walks west for 145 m. What is the displacement from Rhonda's car to her campsite?313 m, 62.3? north of west313 m, 62.3? west of north257 m, 34.4? west of north257 m, 34.4 north of west?13. Chauncy is driving down a hill that descends at an angle of 4.5? below horizontal. After driving 4.60 kilometers along the road, how much elevation has Chauncy lost?390 m260 m360 m4590 m4. A ball is launched with an initial velocity of 14.8 meters per second, at an angle of 61.4? above horizontal. When the ball reaches the ground again, what is its velocity vector?vx?=7.08ms, vy?=-13.0msvx?=13.0ms, vy?=0msvx?=7.08ms, vy?=13.0msvx?=13.0ms, 15. Demarcus launches a small weight into the air. The weight takes 6.4 seconds to reach the ground again. At what time did the weight have a vertical velocity of 0 meters per second?3.2 s6.4 s0.0 snever 16.A golf ball is launched horizontally at a speed of 11 meters per second and a height of 6.4 meters above the ground. How long will it take for the golf ball to reach the ground?0.65 s1.1 s1.4 s0.79 s17. Darla is following directions for a competitive scavenger hunt. The directions say, "From the flagpole, walk for 210 meters, 45? south of east, then turn directly north and walk for another 250 meters where you will find the next clue." What is the shortest path that Darla could follow to get to the next clue sooner?179 m, 34.4? north of east425 m, 69.5? north of east193 m, 38.1? north of east414 m, 60.1? north of east18. Why is it important, when you are starting on a projectile motion problem, to first find the vertical and horizontal components of the velocity?19. Augustine is an ecologist, and he is monitoring the plant life in a forest. He walks 89 meters west, 177 meters south, 443 meters east, 115 meters south, and then 70 meters north. What is his displacement vector from the starting point?418 meters, 32.1? east of south379 meters, 29.5? east of south379 meters, 29.5? south of east418 meters, 32.1? south of east20. Which statement accurately describes the net force acting on the object depicted in the free body diagram above? (Attached photo)The net force is to the south.The net force is to the north.The net force is to the east.The net force is to the west.21. Kenneth is crossing a large river in a motor boat. With respect to the water, the boat is headed directly west with a speed of 6.3 m/s. The river he is crossing flows directly north with a speed of 3.1 m/s. To an observer on the shore, what is Kenneth's velocity vector?7.0 m/s, 26.2? west of north7.4 m/s, 31.9? west of north7.4 m/s, 31.9? north of west7.0 m/s, 26.2? north of west22.Sven is going to try out for his high school's soccer team, so he is practicing his kicking skills. On one practice kick, he launches the soccer ball with a velocity of 17.9 meters per second, and at an angle of 21.6? above horizontal. What is the maximum height achieved by Sven's kick?6.16 m1.89 m2.21 m4.2923. Two teams are each trying to pull a crate towards their side of the field. One team is pulling north with a force of 4491 N. The other team is pulling south with force of 4616 N. What is the net force on the crate?9107 N south9107 N north125 N south125 N north24. Sven is going to try out for his high school's soccer team, so he is practicing his kicking skills. On one practice kick, he launches the soccer ball with a velocity of 17.9 meters per second, and at an angle of 21.6? above horizontal. Assuming the ball lands back on the field, what is the range of Sven's kick?17.8 m19.9 m22.4 m11.6 m25. John walks 91.0 meters north, then turns and walks 166.2 meters east. What is the magnitude of John's displacement at the end of his walk?189 m129 m16.0 m168 m26. Chloe is setting up a tennis ball launcher for a physics project. What angle should she set the launcher at to achieve the maximum possible range?30 degrees60 degrees45 degrees15 degrees27. Allison kicks a soccer ball so that it has an initial velocity 19 meters per second, at an angle of 21? above the ground. How much time does it take for the soccer ball to reach its maximum height?1.8 s1.66 s0.69 s.84s28. Which of the following objects has no net force acting upon it?an object that is changing direction.an object moving with constant velocityan object that is speeding upan object that is slowing down.29. A farmer is marking his property line. He draws one line that is 769.0 meters long, and is 19.0? south of east. How long is the north-south component of the vector he has drawn?250 m727 m267 m769 m30. Explain how you can identify if there is a net force acting on an object, both by looking at the object, and by looking at the free body diagram.