2. [-/10 Points] DETAILS SERPSE10 6.1.OP.003. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider a conical pendulum with a bob of mass m = 85.0 kg on a string of length _ = 10.0 m that makes an angle of 0 = 4.009 with the vertical. (Consider +i to be towards the center of the circular path and +j to be upward.) (a) Determine the horizontal and vertical components of the force exerted by the string on the pendulum. Ni+ Nj (b) Determine the radial acceleration of the bob. m/s2 Need Help? Read It Watch It 3. [-/10 Points] DETAILS SERPSE10 6.1.P.003. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure below. The length of the arc ABC is 203 m, and the car completes the turn in 40.0 s. 35.0 C (a) What is the acceleration when the car is at 8 located at an angle of 35.09? Express your answer in terms of the unit vectors i and j. m/s2 i + m/s2 j (b) Determine the car's average speed. m/s (c) Determine its average acceleration during the 40.0-s interval. m/s2 i + m/s? j4. [-/10 Points] DETAILS SERPSE10 6.1.OP.004.MI.SA. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise A coin placed r = 30.7 cm from the center of a rotating, horizontal turntable slips when its speed is 51.7 cm/s. (a) What force causes the centripetal acceleration when the coin is stationary relative to the turntable? (b) What is the coefficient of static friction between coin and turntable? Click here to begin! Need Help? Read It6. [-/10 Points] DETAILS SERPSE10 6.2.P.010.MI.SA. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise A 38.0-kg child swings in a swing supported by two chains, each 2.91 m long. The tension in each chain at the lowest point is 349 N. (a) Find the child's speed at the lowest point. (b) Find the force exerted by the seat on the child at the lowest point. (Ignore the mass of the seat.) Click here to begin! Need Help? Read It9. [-/10 Points] DETAILS SERPSE10 6.3.OP.013.MI.SA. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise An object of mass m = 0.525 kg is suspended from the ceiling of an accelerating truck as in the figure below. Take a = 2.90 m/s. Inertial Img observer O O (a) Find the angle 8 that the string makes with the vertical. (b) Find the tension 7 in the string. Click here to begin Need Help? Read it