Q1. A vertical bar AB rotates with constant angular velocity w. A light non-stretchable chain of length L is fixed at one end to the point O of the bar. While the mass is fixed at its other end. Find the chain tension and the angle between chain and bar. F, F
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- C. Which of Newton's Laws applies in reference to your body pulls to the right when the car turns to the left? 6. Describe what tangential velocity is in terms of swinging the bucket in a vertical circle and then letting the bucket go. 7. True or False: The centripetal force has the same direction as the centripetal acceleration. 8. Write the formula of cent etal acceleration in terms of tangential velocity. 9. Write the Formula of centripetal force in terms of tangential velocity.A. Find the required F to achieve Net Torque = 0. Assume b = 2a. B. After a design modification, all forces including F stay the same. If new design is basedon b = 1.5a, what will be the net torque after modifications? To remove a nut from an old rusty bolts, you apply a 100 neutron force to the end of a wrench at a 45° angle to the wrench handle. The distance from the applied force to the axis of the bolt is 25 cm. what is the torque exerted on the bolt and N.m
- I Review I Constants A 2.2 kg , 20-cm-diameter turntable rotates at 150 rpm on frictionless bearings. Two 470 g blocks fall from above, hit the turntable simultaneously at opposite ends of a diameter, and stick. Part A What is the turntable's angular velocity, in rpm, just after this event? Express your answer to two significant figures and include the appropriate units. HẢ ? Value Units W = Submit Request AnswerA string is wound around a solid disk with radius of 0.080m and mass of 0.65kg. An object with a mass of 0.50kg is attached to the string.a. Find the acceleration of the hanging mass when it is released.b. Through what angle (in radians) does the disk turn in 1.0s if the disk starts atrest?c. What vertical distance would the mass fall during the 1.0s?A mass in translational equilibrium experiences 3 forces. Select the case that most fully and accurately describes the scenario. I. The magnitudes of the 3 forces are equivalent. II. The angles between the 3 vectors are 120 degrees. III. The vector sum of the 3 forces equals 0N. IV. All 3 forces are parallel. A. III only B. I only C. I and III only D. IV only E. II and III only
- question 11S2In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you weigh 701 N, to the top of the building. Number i Units î
- A solid sphere of radius 45 cm and mass 10 kg is allowed to rotate about its center. A1 kg mass hangs by a string off the disk, and it is released from rest. The string unwinds from the disk without slipping. a. Find the linear acceleration of the 1 kg mass while it is connected to the string.Now we have a rod-shaped space station of length 1023 m and mass 4.86 x 10^6 kg, which can change its length (kind of like an old-fashioned telescope), without changing its overall mass. Suppose that the station is initially rotating at a constant rate of 1.16 rpm. If the length of the rod is reduced to 1.16 m, what will be the new rotation rate of the space station? a. 1,659 N b. 664 N c. 2,654 N d. 531 N