Free-Body Diagrams Worksheet - Mr Herman's...
Transcript of Free-Body Diagrams Worksheet - Mr Herman's...
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Free-Body Diagrams Worksheet !1. Free-body diagrams for foUl'situations are shown below. Fur each situation,
determine the net force acting upon the object.
Situlltion A Si tUllt ion B
FC)rav= '3 H fgrav'""'3 N
SitUlltion C Si tUllt ion 0
fl)r~y '"'25 N
2. Free-body diagrams for four situations are shown below. The net force is knownfor each situation. However, the magnitudes of a few of the individual forces arenot known. Analyze each situation individually and detem1ine the magnitude ofthe unknown forces.
fnet=ON fnot~ 900 N, up f not = 60 N, left Fnot ~ 30 N, right
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3. A book is at rest on a table-top. A free-body diagram for this situation looks likethis:
4. A girl is suspended motionless from a bar which hangs from the ceiling by tworopes. A free-body diagram for this situation looks like this:
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5. An egg is free-falling from a nest in a tree. Neglect air resistance. A free-bodydiagram for this situation looks like this:
6. A flying squirrel is gliding (no wingjlaps) from a tree to the ground at constantvelocity. Consider air resistance. A free-body diagram for this situation looks likethis:
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7. A rightward force is applied to a book in order to move it across a desk with arightward acceleration. Consider frictional forces. Neglect air resistance. A free-body diagram for this situation looks like this:
8. A rightward force is applied to a book m order to move it across a desk atconstant velocity. Consider frictional forces. Neglect air resistance. A free-bodydiagram for this situation looks like this:
9. A college student rests a backpack upon his shoulder. The pack is suspendedmotionless by one strap from one shoulder. A free-body diagram for tillS situationlooks like tllis:
10. A skydiver is descending with a constant velocity. Consider air resistance. A free-body diagram for this situation looks like this:
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11. A force is applied to the right to drag a sled across loosely-packed snow with arightward acceleration. A free-body diagram for this situation looks like this:
y ,
12. A football is moving upwards towards its peak after having been booted by thepunter. A free-body diagram for this situation looks like this:
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13. A car is coasting to the right and slowing down. A free-body diagram for thissituation looks like this:
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r ll-A car is coastingto the right and
slowing down
12-A flying squirrel isgliding (no wing flaps)to the ground atconstant velocity
13-A football ismoving up towards itspeak after havingbeen kicked
14-A horizontal forceis applied to an objectin order to accelerateit
15-A force is appliedto an object in order
\to move it at aconstant velocity
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Q-Rolling along asurface with appliedforce and friction atconstant velocity
I-Rolling along asurface with appliedforce and frictionwith one greater thanthe other
~- True free fall-noforce opposes theweight
2-A gymnast issuspended motionlessfrom a bar whichhangs from the ceilingb two ro es
10-A college studentrests a backpack upon
one shoulder
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h,NamePeriod .._
{TAPE DIAGRAMS HERE AND FILL IN THE OTHER TWO COLUMNS!
Free Body Diagrams-Cut and Tape
l-Falling on the moon-no air drag
,g-At rest on thetable-no horizontal
forces
J.~Falling on Earth atterminal velocity
1-Falling on Earth, butterminal velocity not
yet reached
~-A book is at rest ona tabletop