capa_1 - Physics 1D03 set#1 Main menu Reload Logout Current...

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Physics 1D03, set #1 Main menu · Reload · Logout Current server time is Wednesday, December 20, 2006 at 05:08 Help Units · Metric Prefixes · Constants floresn Set 1, Due Mon, Sep 18, 2006 at 12:00 Go to problem [1 ] [2 ] [3 ] [4 ] [5 ] [6 ] [7 ] [8 ] [9 ] 1-9 Status: Y Y Y Y Y Y Y Y Y 1. 1 . [1 point, 10 tries] An athlete swims the length of a 50.8 m pool in 19.0 s and makes the return trip to the starting position in 24.8 s. Determine her average velocity in the first half of the swim. Answer: 2.67e+00 m/s 2. 2 . [1 point, 10 tries] Determine her average velocity in the second half of the swim. Answer: -2.05e+00 m/s 3. 3 . [1 point, 10 tries] Determine her average velocity in the round trip. Answer: 0.00e+00 m/s 4. 4 . [1 point, 10 tries] A tennis ball with a speed of 10.2 m/s is thrown perpendicularly at a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 7.86 m/s. If the ball is in contact with the wall for 0.0114 s, what is the average acceleration of the ball while it is in contact with the wall?
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