sideways, parallel to the line of scrimmage, for 17 m. Next, he throws the ball
ID: 1885003 • Letter: S
Question
sideways, parallel to the line of scrimmage, for 17 m. Next, he throws the ball forward 7.8 x 10' m, to the line of scrimmage. The receiver is tackled immediately. How far is the football displaced from its original position? cular 7.) A duck waddles 2.3 m east and 7.0 m north. What are the magnitude and direction of the duck's displacement with 8. A plane flies from city A to city B. City B is 1650 km west and 1170 km south of city A. What is the total 9. While following directions on a treasure map, a person walks 66.0 m south, then turns and walks 7.60 m east. respect to its original position? isplacement of the plane? ter Which single straight-line displacement could the person have walked to reach the same spot? 10. A string attached to an airborne kite was maintained at an angle of 65.0 with the ground. If 170 m of string was reeled in to return the kite back to the ground, what was the horizontal displacement of the kite? (Assume the kite string did not sag.) An athlete runs 130 m across a level field at an angle of 22.00 north of east. What is the north component of this displacement? I1. horizontal 12. A skateboarder rolls 41.0 m down a hill that descends at an angle of 12.0° with the horizontal. Find the and vertical components of the skateboarder's displacement.Explanation / Answer
7] displacement = sqrt(2.3^2+7^2) = 7.368 m
direction = arctan(7/2.3) = 71.8 degree N of E
8] displacement = sqrt(1650^2+1170^2) = 2022.7 km answer
9] displacement = sqrt(66^2+7.6^2) = 66.436 m answer
direction = arctan(7.6/66) = 6.57 degree E of S
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