Three identical point masses of m =0.1 (kg) are moving at a constant velocity v =10 (m/s) equidistant from each other on a circular orbit of radius R 0.3(m). What is the total angular momentum (kg.m2/s) of the three point masses relative to point A at the monient shown in the figure. Point A is 2R away from the center. 2R m R m A) 0.9 В) 1.2 C) 1.8 D) 3.0 E) 3.6

At a circus you see a man spinning plates with a radii of 75 cm on top of long poles. The plates have a constant angular acceleration of 0.6 rad/s^2. Assuming the plates start from rest, after a time of 8 seconds calculate a) how many rotations they made, b) angular velocity, c) tangiential acceleration, d) radial acceleration, e) overall acceleration.

Conservation of Angular Momentum. A uniform spherical asteroid rotates around an axis through its CM. Over time, it accretes space dust (of the same density), whose initial velocity with respect to the asteroid’s CM is zero. The asteroid grows from mass m0 to m. How does the period of its rotation change with m? If the asteroid doubles in mass, how and by what factor does its period of rotation change?

A ficle is located at position r=3î+7g+4€ par %3D 3. with respect to the origin. It has linear momentum D= -î +9Te ka ms! what is its angular momentum?

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The rotation of the planet Mercury is a little strange compared to Earth. It rotates on its axis very slowly; one rotation takes 56.85 earth days. Assuming Mercury is a perfect sphere of mass 3.29*1023 kg and radius 2440 km, calculate its angular momentum. a) 1.0*1030 kg.m2/s b) 1.0*1028kg.m2/s          c) 1.0*1032 kg.m2/s Calculate its rotational KE. a) 1.4*1023 J                          b) 3.4*1021 J                                   c) 6.4*1023 J

A 2 kg mass is located at r = 2m +3m and has. velocity v = 4 m/s - 1m/s What is the angular momentum of the mass

Two astronauts each having a mass of 75kg are connected by a 10m rope of negligible mass. They are isolated in space, orbiting thier center of mass at speeds of 5 m/s. a) Treating the astronauts as particles, calculate the magnitude of the angular momentum and the rotational energy of the system b) By pulling on the rope, one of the astronauts shortens the distance between them to 5m. What is the new angular momentum of the system?

The paths of two small satellites, X and Y, of equal mass of 4.00 kg each, are shown below. They orbit around a massive star, as illustrated, with M = 6.20x1029 kg The orbits are in the plane of the paper and are drawn to scale. %3D a C In the statements below KE is kinetic energy, PE is potential energy, and L is magnitude of the angular momentum. At a, the PE of X is .... that of Y. v The speed of Y at c is .... that at a The L of X at p is .... that at u. At a, the KE of X is .... that of Y. The PE of Y at c is .... the PE of X at w Submit Answer Tries 0/12 Send Feedb