Practice Problem 1.8 Review | Constants SOLUTION SET UP The situation is shown in (Figure 1). We have chosen the a axis as east and the y axis as north. This is the usual Consider four finalists in a treasure hunt who are choice for maps. Let A be the first displacement, B the second, and C the third. We can estimate from the diagram that the brought to the center of a large, flat field. Each is vector sum R is about 10 m, 40 west of north. The angles of the vectors, measured counterclockwise from the + axis, given a meterstick, a compass, a calculator, a are 58 , 216 , and 270 . We have to find the components of each. shovel, and (in a different order for each contestant) these three displacements: SOLVE The components of A are Ax = A cos 0 = (72.4 m) (cos 58) = 38.37 m Figure Problem 3.10 23 of 25 Review | Constants Part A A military helicopter on a training mission is flying horizontally at a speed of 90.0 m/s when it accidentally drops a bomb (fortunately, not armed) How much time is required for the bomb to reach the earth? at an elevation of 440 m . You can ignore air resistance. AEQ ? t = S Submit Request Answer Part B How far does it travel horizontally while falling? IVO AEd ? L = m Submit Request AnswerProblem 3.10 23 of 25 Review | Constants Part C A military helicopter on a training mission is flying horizontally at a speed of 90.0 m /s when it Find the horizontal component of the bomb's velocity just before it strikes the earth. accidentally drops a bomb (fortunately, not armed) at an elevation of 440 m . You can ignore air resistance. IVO AEQ ? Vx = m/s Submit Request Answer Part D Find the vertical component of the bomb's velocity just before it strikes the earth. VO AED ? Vy m/s Submit Request AnswerMultiple Choice Question 5.9