Circular Motion Assignment 1. Draw free-body diagrams for each of the following objects in uniform circular motion. State the force(s) providing the centripetal force. a) The Earth orbiting the Sun b)...

The attached file has the questions in it


Circular Motion Assignment 1. Draw free-body diagrams for each of the following objects in uniform circular motion. State the force(s) providing the centripetal force. a) The Earth orbiting the Sun b) A car making a curve on a horizontal road c) A ball on a string swinging in circles in the vertical plane i. at the top of the circle ii. at the bottom of the circle d) A pilot in a plane making a vertical circle in mid-air i. at the top of the loop (she is upside down at this position, as is the plane) ii. at the bottom of the loop 2. Sometimes road surfaces have banked curves. Explain how this helps cars make turns more safely. Include a free-body diagram. 3. A rock of mass 200 g is attached to a 0.75 m long string and swung in a vertical plane. a) What is the slowest speed that the rock can travel and still maintain a circular path? b) What is the tension in the string at the bottom of the swing? 4. Consider a car of mass 980.kg rounding a curve of radius 115m. a) What is the banking angle required for the car rounding this curve at 72km/h with no concern of consideration for friction? b) If the curve is level and has no banked angle, what is the force required to keep the car moving around the curve at the 72km/h and not fly off into the ditch? c) If it is a warm, dry day, the coefficient of kinetic friction is 0.72. If the curve is again level, what is the maximum speed the car can travel safely around the corner? Is the mass of the car relevant?Com Level 5. Calculate the velocity of a satellite that orbits the earth 524km above the earth’s surface. [radius earth = 6.38 x 106 m, mass earth = 5.98 x 1024 kg]. Rubric for Circular Motion Assignment Categories Level 1 (50 - 59%) Level 2 (60 - 69%) Level 3 (70 - 79%) Level 4 (80 - 100%) -knowledge of terminology and conventions related to circular motion -demonstrates limited knowledge of terminology and conventions related to circular motion -demonstrates some knowledge of terminology and conventions related to circular motion -demonstrates considerable knowledge of terminology and conventions related to circular motion -demonstrates thorough knowledge of terminology and conventions related to circular motion - ability to quantitatively solve problems involving uniform circular motion -solves problems involving uniform circular motion with limited success -solves problems involving uniform circular motion with some success -solves problems involving uniform circular motion with considerable success -solves problems involving uniform circular motion with a high degree of success -expression and organization of solutions and results, using appropriate numeric (e.g., SI units and significant digits) symbolic, and graphic modes of representation (FBDs, components, and mathematics) -expresses and organizes solutions and results, using appropriate numeric, symbolic, and graphic modes of representation with limited clarity -expresses and organizes solutions and results, using appropriate SI units and significant digits with some clarity -expresses and solutions and results, using appropriate SI units and significant digits with considerable clarity -expresses and organizes solutions and results, using appropriate SI units and significant digits with a high degree of clarity -ability to apply knowledge of forces and circular motion to new situations (e.g., banked curves, gravity)  -demonstrates limited ability to apply knowledge of forces and circular motion to new situations -demonstrates some ability to apply knowledge of forces and circular motion to new situations -demonstrates considerable ability to apply knowledge of forces and circular motion to new situations -demonstrates thorough ability to apply knowledge of forces and circular motion to new situations