Circular Motion and Gravitation2

Circular Motion and Gravitation2 - Circular Motion and...

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Circular Motion and Gravitation home - about - terms - credits - feedback Physics Tutorial Minds on Physics Multimedia Physics Studios Shockwave Physics Studios The Review Session 1-D Kinematics Newton's Laws of Motion Vectors and Projectiles Forces in Two Dimensions Momentum and Collisions Work, Energy and Power Circular and Satellite Motion Static Electricity Electric Circuits Waves Sound and Music Light and Color Reflection and Mirrors Refraction and Lenses Physics Help Curriculum Corner The Laboratory » The Physics Classroom » Review Session » Circular Motion and Gravitation Circular Motion and Gravitation Review Navigate to Answers for: Questions #1-#14 Questions #15-#28 Questions #29-#40 [ #15 | #16 | #17 | #18 | #19 | #20 | #21 | #22 | #23 | #24 | #25 | #26 | #27 | #28 ] Part C: Diagramming and Analysis 15. In the diagram at the right, draw vector arrows (straight lines with arrowheads) which indicate the following for an object which is moving in a clockwise circle. the net force at point A. the acceleration at point B. the velocity at point C. Answer: See diagram for answers. The force and acceleration vectors are directed inwards towards the center of the circle and the velocity vector is directed tangent to the circle. Useful Web Links Speed and Velocity || Acceleration || The Centripetal Force Requirement [ #15 | #16 | #17 | #18 | #19 | #20 | #21 | #22 | #23 | #24 | #25 | #26 | #27 | #28 ] 16. The diagram at the right shows a satellite orbiting the Earth in an elliptical path in a clockwise direction. http://www.physicsclassroom.com/reviews/circles/cpmans2.cfm (1 of 11) [4/12/2552 19:15:27]
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a. Draw a vector representing the velocity of the object at position A. 2. raw a vector representing the force on the object at position D. 3. Draw a vector representing the acceleration of the object at position C. 4. At which of the four positions is the satellite moving fastest? Answer: See diagram for answers. The force and acceleration vectors are directed towards the planet being orbited (which is at a foci of the ellipse) and the velocity vector is directed tangent to the path. Useful Web Links Circular Motion Principles for Satellites || Mathematics of Satellite Motion [ #15 | #16 | #17 | #18 | #19 | #20 | #21 | #22 | #23 | #24 | #25 | #26 | #27 | #28 ] 17. A 1.20-kg bucket is held by a string and whirled in a vertical circle. The radius of the circle is 1.30 m. The speed of the bucket is 3.70 m/s at the top of the loop and 7.10 m/s at the bottom of the loop. On the diagrams below, construct a free-body diagram (label all forces according to type) for the bucket at both the top and the bottom of the loop. Fill in the blanks and clearly indicate the magnitude of the individual force values on your free-body diagram. http://www.physicsclassroom.com/reviews/circles/cpmans2.cfm (2 of 11) [4/12/2552 19:15:27]
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This note was uploaded on 11/18/2010 for the course CPHY 101 taught by Professor Jay during the Spring '10 term at University of Massachusetts Boston.

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Circular Motion and Gravitation2 - Circular Motion and...

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