A disk with a rotational inertia of 1.92 kg·m2 rotates like a merry-go-round while undergoing a torque given by τ = (1.47 + 6.39t) N · m. At time t = 1.00 s, its angular momentum is 2.57 kg·m2/s. What is its angular momentum at t = 3.00 s?
A disk with a rotational inertia of 1.92 kg·m2 rotates like a merry-go-round while undergoing a...
1a. 1b. A disk with a rotational inertia of 1.20 kg·m2 rotates like a merry-go-round while undergoing a torque given by τ = (4.01 + 2.79t) N · m. At time t = 1.00 s, its angular momentum is 3.53 kg·m2/s. What is its angular momentum at t = 3.00 s? In the figure here, three particles of mass m = 0.013 kg are fastened to three rods of length d = 0.13 m and negligible mass. The rigid assembly...
Question 13 A disk with a rotational inertia of 3.77 kg.m2 rotates like a merry-go-round while undergoing a torque given by T = (7.29 + 9.27t) N.m. At time t - 1.00 s, its angular momentum is 5.70 kg.ml/s. What is its angular momentum at t = 3.00 s? Number Units
Physics Q. A merry-go-round comprises a wooded disk of radius R=2 meters and rotational inertia 148kg·m2 . It rotates with an angular velocity of 2.5rad/s, with a small (point-like!) child of mass 10kg at its center. The child then crawls to the outside rim. What is the the angular velocity now?____rad/s please explain how to solve for this.
a merry-go-round in the park has a radius of 2.5 m and rotational inertia of 1000 kg*m^2. a child pushes the merry-go-round with a constant force of 50 N applied at a point tangent to the edge. a frictional torque of 12 N*m acts at the axle of the merry-go-round. what is the rotational acceleration of the merry-go-round while the child is pushing? at this rate, what will the rotational velocity of the merry-go-round be after 12 s if it...
[33] A Merry-Go-Round (thin solid disk of mass M-2000 kg and rotational inertia ofla k-1 MR2)is rotating freely, without friction, at 46 rpm. Three people step on the very edge of the Merry-Go-Round (Gi.e. at a distance R from the center), each with a mass of m 80.0 kg (treat them as point particles). Determine the new angular speed of the Merry-Go-Round in rad/s. b. a. How many revolutions does it turn in 2.0 min, after the people get on?...
The angular momentum of a flywheel having a rotational inertia of 0.150 kg·m2 about its axis decreases from 3.40 to 1.400 kg·m2/s in 0.90 s. (a) What is the average torque acting on the flywheel about its central axis during this period? N·m (b) Assuming a uniform angular acceleration, through what angle will the flywheel have turned? rad (c) How much work was done on the wheel? J (d) What is the average power of the flywheel? W
Figure shows a uniform disk that can rotate around its center like a merry-go-round. The disk has a radius of 2.00 m and a mass of 20 kg and is initially at rest. Starting at time t = 0, two forces are to be applied tangentially to the rim as indicated, so that at time t=1.25 s the disk has an angular velocity of 250 rad/s counterclockwise. Force F1 has a magnitude of 0.100 N. What is magnitude F2? TE
Two disks are mounted (like a merry-go-round) on low-friction bearings on the same axle and can be brought together so that they couple and rotate as one unit. The first disk, with rotational inertia 3.00 kg m about its central axis, is set spinning counterclockwise at 550 rev/min. The second disk, with rotational inertia 6.40 kg m about its central axis, is set spinning counterclockwise at 800 rev/min. They then couple together. (a) What is their angular speed after coupling?...
The figure shows a uniform disk that can rotate around its center like a merry-go-round. The disk has a radius of 2.0 cm and a mass of 18 grams and is initially at rest. Starting at time t = 0, two forces are to be applied tangentially to the rim as indicated, so that at time t = 1.2 s the disk has an angular velocity of 300 rad/s counterclockwise. Force F1 has a magnitude of 0.101 N. What is...
The figure shows a uniform disk that can rotate around its center like a merry-go-round. The disk has a radius of 2.00 cm and a mass of 20.0 grams and is initially at rest. Starting at time t = 0, two forces are to be applied tangentially to the rim as indicated, so that at time t = 1.25 s the disk has an angular velocity of 250 rad/s counterclockwise. Force F1 has a magnitude of 0.100 N. What is...