CSecure https://loncapa2.physics.sc.edu/res/msu/physicslib/msuphysicslib/05_1D M

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CSecure https://loncapa2.physics.sc.edu/res/msu/physicslib/msuphysicslib/05_1D Mot b16.problem?symbzuploaded%2fsc%2f9O3012791ea535ael scl1%2fdefault_125091 48431 | Nicholas Ballowe (Student section: 1) 2018 Sp, Phys 201 (wilson) Messages Courses Help Logout Main Menu Course Contents » HW 1 Traveling Car Notes W Bookmark Communicate-Print e Info Course Contents » Evaluate A car travels a certain distance along a straight road (in the +x direction). The distance the car travels as a function of time is shown in the fiqure below. When the car changes speed it does so uniformly. Select the appropriate choice for each statement. 1000 800 600 UO 400 200 20 40 60 80 Time (s) The speed at 4 sec is The x-acceleration is the speed at 67 sec zero at 15 sec zero at 64 sec . The x-acceleration is The speed is zero at 23 sec The acceleration magnitude at 36 sec is At 67 sec, the speed is as high as it gets . the acceleration magnitude at 15 sec Submit Answer Tries 0/12 Using the qraph above, calculate the average speed of the car for the period from 0 to 40.0 s 10:50 AM O Type here to search

Explanation / Answer

1) greater than

2) less than

3) equal to

4) equal to

5) greater than

6) False

7) averaqge speed from t = 0s, to t = 40.0 s,

V_avg = displacement/time taken

= 400/40

= 10.0 m/s

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