03_P32InstructorSolution

03_P32InstructorSolution - 3.32. Visualize: Only the minute...

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3.32. Visualize: Only the minute hand is shown in the figure. Solve: (a) We have 8:00 ˆ (2.0 cm) Sj = G and 8:20 ˆˆ (2.0 cm)cos30 (2.0 cm)sin30 . Si j = °− ° G The displacement vector is 8:20 8:00 (2.0 cm)[cos30 (sin30 1) ] (2.0 cm)[0.87 1.50 ] (1.74 cm) (3.00 cm) rS S ij Δ= ° + =− G G G (b) We have 8:00 ˆ (2.0 cm) = G and 9:00 ˆ (2.0 cm) . = G The displacement vector is 9:00 8:00 S G G G = 0. Assess:
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