A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top. The string has a length of 52 cm and is wound around the top at a spot where its radius is 1.1 cm. The thickness of the string is negligible. The top is initially at rest. Someone pulls the free end of the string, thereby unwinding it and giving the top an angular acceleration of +14 rad/s2. What is the final angular velocity of the top when the string is completely unwound?
A top is a toy that is made to spin on its pointed end by pulling...
A boy pulls on a string wrapped around the body of a top to make it spin. The string has a length of 57 cm and is wrapped around the top at a place where its radius is 1.6 cm. The top is initially at rest. He pulls the free end of the string, thereby unwinding it and giving the top an angular acceleration of +11 rad/s2 . Assume that the thickness of the string is negligible, and the rotational...
A toy top with a spool of diameter 4.7 cm has a moment of inertia of 3.3×10−5 kg⋅m2 about its rotation axis. To get the top spinning, its string is pulled with a tension of 0.27 N. How long does it take for the top to complete the first five revolutions? The string is long enough that it is wrapped around the top more than five turns.
A toy top with a spool of diameter 5.1 cm has a moment of inertia of 3.3×10−5 kg⋅m2 about its rotation axis. To get the top spinning, its string is pulled with a tension of 0.31 N . How long does it take for the top to complete the first five revolutions? The string is long enough that it is wrapped around the top more than five turns. (Express your answer in seconds!!!)
A solid sphere has a 0.8 m long string wrapped around it. The free-end of the string is held and the solid sphere is released thus unwinding the string as it falls. Determine how fast the solid sphere will be going at the moment the string is completely unwound assuming no thermal energy is generated. String Blocks & a pulley In the diagram below the red block has a mass of 9 kg, the blue block has a mass of...
front view side view FT R. ول Pulling the yo-yo [9pt] A non-intuitive motion that combines translation and rotation is pulling a wheel with a string wrapped around it, as shown in the figure above. Depending on what angle the string is pulled, you can obtain three kinds of motion: the yo-yo accelerating in the direction of the applied tension force and winding up, the yo-yo accelerating in the opposite direction of tension and unwinding, and the yo-yo sliding at...
front view side view FT 1 R Ms Pulling the yo-yo [9pt] A non-intuitive motion that combines translation and rotation is pulling a wheel with a string wrapped around it, as shown in the figure above. Depending on what angle the string is pulled, you can obtain three kinds of motion: the yo-yo accelerating in the direction of the applied tension force and winding up, the yo-yo accelerating in the opposite direction of tension and unwinding, and the yo-yo sliding...
8.4 A light, rigid rod is 62.8 cm long. Its top end is pivoted on a frictionless horizontal axle. The rod hangs straight down at rest with a small, massive ball attached to its bottom end. You strike the ball, suddenly giving it a horizontal velocity so that it swings around in a full circle. What minimum speed at the bottom is required to make the ball go over the top of the circle? ________________m/s
A light rigid rod is 76.7 cm long. Its top end is pivoted on a low-friction horizontal axle. The rod hangs straight down at rest with a small massive ball attached to its bottom end. You strike the ball, suddenly giving it a horizontal velocity so that it swings around in a full circle. What minimum speed at the bottom is required to make the ball go over the top of the circle
Analysis Model Tutorial A4.00-m length of light nylon cord is wound around a uniform cylindrical spool of radius 0.500 m and mass 1.00 kg. The spool is mounted on a frictionless axle and is initially at rest. The cord is pulled from the spool with a constant acceleration of magnitude 2.30 m/s? (a) How much work has been done on the spool when it reaches an angular speed of 4.00 rad/s? (b) How long does it take the spool to...
A string is wound around a uniform disk of radius R and mass M. The disk is released from rest with the string vertical and its top end tied to a fixed bar. See the figure below. (Submit a file with a maximum size of 1 MB.) (a) Show that the tension in the string is one third of the weight of the disk. (b) Show that the magnitude of the acceleration of the center of mass is 2g/3. (c) Show that the...