FBD exercises - Free-Body Diagrams In each c;rse a rock is...

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Free-Body Diagrams In each c;rse, a rock is acted on by one or mone forces All drawinç aae in a vertical plane, and friction is negligibte except whert noted. Draw accurate fre-botly diagrams showing all f<rrces acting on the mck. Pteasc use a ruler, and do it in pencil so you cân con€ct mistakes- The first one is done as an example. Static tr 3. Rock is falling. No air friction. /-<\ k<y a 5. Statk 6. Static 7. Stâtic .'o: 8. Static VOL.3I,FEB. 1993 THEPHYS/CSTFÀCHER tO5
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h : Sliding without friction. .a 10. Static friction prevents sliding. :1 f f. S[ding at constant speed without friction. lZ Falling at cnnstant (terminal) velocity. AE\ \3i.-7 13. Decelerating because of klnetic friction. l{. Rising in a parabolic trajectory 15- At thu top of a parabolic trajectory. ,,ffi'. . a , t I t 16. Tied to a roF and pulled straight upward. Accelenting upward at 9.8 m/sz. No friction. I
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FBD exercises - Free-Body Diagrams In each c;rse a rock is...

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