problem03_85

University Physics with Modern Physics with Mastering Physics (11th Edition)

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3.85: The three relative velocities are: J/G, v Juan relative to the ground. This velocity is due north and has magnitude m/s. 00 . 8 J/G = v , B/G v the ball relative to the ground. This vector is ° 0 . 37 east of north and has magnitude m/s. 0 . 12 B/G = v , B/J v the ball relative to Juan. We are asked to find the magnitude and direction of this vector. The relative velocity addition equation is
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Unformatted text preview: , J/G B/J B/G v v v + = so . J/G B/G B/J v v v -= Take y + to be north and x + to be east. m/s 222 . 7 . 37 sin B/G B/J = ° + = v v x m/s 584 . 1 . 37 cos / B/G B/J =-° + = G J y v v v These two components give m/s 39 . 7 = B/J v at ° 4 . 12 north of east....
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• Relative velocity, 8.00 m/s, relative velocity addition, 1.584 m/s, 7.39 m/s, 7.222 m/s

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