ch04-p019 - 19. We make use of Eq. 4-16 and Eq. 4-10. Using...

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22 0 00 33 ˆˆ ˆ ˆ ( ) (20.0i 40.0j) [(5.00 3 /2)i (2.00 2 )j] ˆ ˆ (20.0i 40.0j) (5.00 /2)i (2.00 2 /3)j (20.0 5.00 /2)i (40.0 2.00 tt r t r vdt t t dt t t =+ = + + + + + =+++ ++ =++ +++ ³³ GGG (a) At 4.00 s t = , we have ( 4.00s) (72.0 m)i (90.7 m)j. rt == + G (b) ( 4.00s) (29.0 m/s)i (34.0 m/s)j vt + G . Thus, the angle between the direction of travel and + x , measured counterclockwise, is 1 tan [(34.0m/s)/(29.0m/s)] 49.5 . θ
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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