Question 1(Multiple Choice Worth 2 points) (07 04 MC) The figure shows two kayakers pulling a raft. One kayaker pulls with a force F, = (180,160). and the other kayaker pulls with a force F2 = (123.-128). F. F z What is the angle between the kayakers? Round your answer to the nearest degree. 0 803 O 86: 0 88: O 92: Question 2(Multiple Choice Worth 2 points) (0704 MC) Given u = 3i - 8j and v = -4i + 8j, what is u . v? 073 O8 O-76 O-56Question 3(Multiple Choice Worth 2 points) (07 04 MC) Given u = (-10,-3) and v = (4,8), what is projvul? _640 192 109 109 256 192 109 109 O (-8,-3) 16 32 Question 4(Multiple Choice Worth 2 points) (07 04 MC) Vectors u and v are shown in the graph. V N -10 -9 -8 -7 -6 -5 -4-3-2 12 3 4 5 6 7 8 What is -3(u . v)? O 279 O 261 Og O-119Question 5(Multiple Choice Worth 2 points) (07.04 MC) If u = (-7, -4) and v = (-16, 28) with an angle @ between the vectors, are u and v parallel or orthogonal? Explain. O The vectors are parallel because cos 0 = -1. O The vectors are parallel because u . v = 0. O The vectors are orthogonal because cos 0 = -1. O The vectors are orthogonal because u . v = 0