Instructions:Choose an answer and hit 'next'. You will receive your score and answers at the end.Report an Errorquestion 5 of 5Which of the following correctly shows how to subtract vector b from vector a?

by using head to tale rule we can a) add the vectors b) subtract the vector c) multiply the vector d) both add and subtract the vector​

Find the angle between the vectors. (First find an exact expression and then approximate to the nearest degree.)a = 5, 4,    b = 3, −1

Vector A is 13 cm at an angle of 90o to horizontal (positive x axis) and Vector B is 8 cm at an angle of 180o to horizontal. Arrange your vectors for the following three additions/subtractions, and then use a ruler to determine the approximate magnitude of the result. Include the ruler in your photograph if possible.A + BA - BB - ARecord the magnitudes in your lab notes and describe the direction of the three resulting vectors. Are all three resulting vectors identical? Explain.

(Challenge question) Submarine hunting. Two surface ships on manoeuvresare trying to determine a submarine’s course and speed to prepare for an aircraftintercept. As shown here, ship A is located at (4, 0, 0), whereas ship B is locatedat (0, 5, 0). All coordinates are given in thousands of meters. Ship A locates thesubmarine in the direction of the vector 2i + 3j – (1/3) k, and ship B locates it in thedirection of the vector 18i – 6j – k. Four minutes ago, the submarine was locatedat (2, -1, -1/3). The aircraft is due in 20 minutes. If the submarine moves in astraight line at a constant speed, to what position should the surface ships directthe aircraft to drop the torpedo? (Hint: Write equations of lines in vector form).

A = 10ar + 30aθ -10aφ    and B = -3ar - 10aθ +20aφ. Find a unit vector perpendicular to both vector A and vector Bans.0none of these-0.947ar + 0.322aθ + 0.019aφ0.947ar - 0.322aθ - 0.019aφ Previous Marked for Review Next