Answered: 2. A ladder is 6 feet from a building.…

2. A ladder is 6 feet from a building. The building is 20 feet tall. The angle opposite the ladder is 90. How tall is the ladder? A. 23.00 feet B. 24.00 feet C. 20.88 feet D. 31.24 feet

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Given the vectors Ā = (-2î + j) m and B = (4î – j) m. The direction of the resultant vector R = Ả + B is O a. 8 = 180° O b.0 = 90° O c. 0 = 45° O d.0 = 0°
1. Create four vectors. Then perform vector addition A+B+C+D. 2. Using the vectors you created in number 1, perform (A-B) + C. 3. What are the x- and y- components of vector A if its magnitude is 6 m and angle 0-30 degrees. 4. Stephen Curry hit once again a three pointer. To celebrate, he ran, from the shooting point, 2 km south and then 3 km west. How far and in what direction is he from the shooting point? 5. Given the two displacements D= (5.00i+2.00j-3.00k) and E= (6.00i+3.00j+2.00k), find the magnitude of the displacement 4D-2E. 6. A postal employee drives a delivery truck along the route shown in Fig. E1.21. Determine the magnitude and direction of the resultant displacement. vector addition.png
Obtain expressions in component form for the position vectors having the following polar coordinates. 13 m, 140 degrees counterclockwise from the x axis.3.80 cm, 80.0 degrees counterclockwise from the x axis. 20 inches, 220 degrees counterclockwise from the x axis.
5. A hiker travels from camp through the forest. The hiker follows 3 trails and becomes lost. The first is 180 m due west. The second one is 210 m in a direction of 35.00 east of south. The third one is 280 m at 30.0° north of east. What are A) the distance and B) direction the hiker need to walk to return to the camp?
If a car travels 25km towards east and then 15 km north. The resultant displacement of the car is O a. 29.15km, 30.96° North of East O b. 40km, 30.96° North of East O . 29.15km, 30.96° East of North O d. 10km, 45° North of East
2. Vector Vi is 6.6 cm long and points along the negative x axis. Vector is 8.5 cm long and points at to the positive x axis. Determine the sum (magnitude and angle). 3. Vi is a vector 30m in magnitude and points at an angle of 23.4° above the negative x axis. V, is a vector 50m in magnitude and points 49° below the -x aYis Yira yont
A boy named Jose walks westward for 5 km and then northward for 5 km and then 5 km southwest. If he had walked directly to his destination, in what direction would he have headed? a. 9.735 degrees North of West b. 9.735 degrees West of North c. 9.735 degrees South of East d. 9.735 degrees East of South
31. What will be the resultant displacement if Charles moves 20 meters, East then 21 meters, South? Group of answer choices 29m, 46.40° 29m, 313.60° No answer 29m, 43.60° 29m, 316.40°
14. What is the magnitude of the resultant of the following: d;=55 m, east; d,=25 m, north? A. 8.94 m B. 40 m C. 60.42 m D. 80 m 15. What is the appropriate direction of the resultant? A. 11.67° north of east C. 65.56° north of east B. 24.44° north of east D. 78.32° north of east 16. At an airport an aircraft moves from the terminal building to the end of the runway. How far is the plane from its initial position (magnitude of resultant displacement)? A. 400 m 200 m 150 m C. 400 m, right of origin 200 m B. 800 m D. 800 m, right Source: of origin 250 m http://grove.ea.dundeecity sch.uk/our- school/departments/sciences/physics
3. Your pet cat is playing around in the living room and performs the following displacements: 80 cm north, 55 cm east, and then 60 cm at 30° south of east. Determine the magnitude and direction of the fourth displacement of your cat if A. She is to arrive at her initial location. B. Her resultant displacement is 20 cm at 75° south of west from her initial location.
If vector B is added to vector A, which two of the following choices must be true for the resultant vector to be equal to zero? A. vector A and vector B have the same magnitude B. vector A and vector B are perpendicular O C. vector A and vector B are parallel and in the same direction O D. vector A and vector B are parallel and in opposite directions; and both have the same magnitude
2. DETAILS Obtain expressions in component form for the position vectors having the following polar coordinates. (a) 13.0 m, 140° counterclockwise from the +x axis. R = (b) 4.00 cm, 50.0° counterclockwise from the +x axis. R= cm (c) 20.0 in., 204° counterclockwise from the +x axis R = in. MY NOTES ASK YOUR TEACHER