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9) In an Olympics event of JAVELIN throw, an athlete throws the javelin for a horizontal distance (RANGE) of 90 m, and the athlete launches it at an angle of 9 = 36° from horizontal ground. A) What is the initial speed "vo" given to the javelin by the athlete? B) What is the time "t" taken by the javelin to travel in the air from the athlete to the ground 90 m away? y-axis Vo 8 = 36° x-axis 0 90 m
Scalar Products and Vector Products in 2D. For problem 5 use the following values for vectors "A" and "B" A = 5i - 2j B = 31+4) ; 5) Calculate A) ||A|| 5, 385 5²-2² B) || B|| √37414 C) A B A Bx Ax-By A, By D) the angle "e" between vectors "A" and "B", knowing that "A B = |A|B|| cos (0)" E) AX B F) ||AX B|| G) the angle "9" between vectors "A" and "B", knowing that "||A x B|| = ||A||||B|| sin (0)" (compare with the result from "D)") 297 Si of