If a wheel of the moment of inertia 24 kgm moves at a velocity of 6...
Conservation of angular momentum. A gear wheel is on a friction-less axis that is not in motion with a projectile being shot at the gear wheel perpendicular; the ball sticks to the wheel. Radius is 1.48 m; Mass is 2.0 kg; Velocity is 5.0 m/s; moment of Inertia is 100 kgm^2. Determine the fraction of mechanical energy lost in a rotational collision.
Moment of Inertia/Conservation of Angular Momentum 10) Consider a cat in free-fall, as shown above (assume no external torques act upon it). As it falls, the cat has an initial angular velocity of: o 1.6 rad/s, and an initial moment of inertia of: In=7.5x 10 kgm. If the cat extends its legs so that its moment of inertia increases to I nal12.0x10 kgm, what would be the cat's final angular velocity?
5. A wheel has initially an angular velocity of 2.5 rad/s, with a moment of inertia of 225 kg m? If a torque of 170 N-m torque acts on a wheel. How many revolutions complete the wheel in 3.0 ss?
8. Th e moment of inertia for a wagon wheel can be calculated by taking the sum of the moment of inertia for a hoop (radius 1.2 m) rotating about a Cylinder axis (mass 3 kg) and three rods of length 1.2 m, rotating about their center perpendicular to their length, each of mass o.8 kg. If the wheel is rotating at an angular speed of 2.5 rad/s, what is the wagon wheel's kinetic energy as it spins in place?...
A wheel with a moment of inertia of 5 kg-m² is turning at an angular velocity of » = 25 rad/s. If the wheel is subject to a net torque of t= -0.75 N•m, how much time does the wheel take to come to a stop? A. 6.67 s B. 1.3 s C. 166.7 s D. 23.3 s E. 147.1 s
1. The pulley has a radius of 2.70 m and a moment of inertia of 39.0 kg·m2. The hanging mass is 4.20 kg and it exerts a force tangent to the edge of the pulley. What is the angular acceleration of the pulley? (answer needed in rad/s^2 2. A string is wound tight around the spindle of a top, and then pulled to spin the top. While it is pulled, the string exerts a constant torque of 0.150 N·m on...
1. A pottery wheel with moment of inertia I = 0.14 kg m2 is spinning at 5 radians/sec. How much kinetic energy does it have? 2. Ceres is the largest asteroid in the belt between Mars and Jupiter. It has an average radius of 475 km and a period of rotation of 9.07 hours. Calculate its angular momentum if the mass is 9.42 x 1020 kg The moment of inertia of a solid sphere I = 2/5 mR2
A wheel of moment of inertia of 3.00 kg.m2 starts from rest and accelerates under a constant torque of 3.00 N.m for 4.00 s. The wheel's rotational kinetic energy at the end of 4.00 s is = A wheel starts at rest, and has an angular acceleration of 4 rad/s2. After 4.0 s it will have an angular velocity of ? rad/s A wheel starts at rest, and has an angular acceleration of 3.5 rad/s2. After 2.0 s it will have...
4. A golfer swings a club. The moment of inertia of the end of the club is 0.3 kgm at an initial angular velocity of 100 rad/s. If the club's velocity increases to 200 rad/s, what is the angular impulse exerted? (kgm/s)
6. Calculate the moment of inertia of a baseball bat about the handle (in kgm) given that the mass is 5kg and radius of gyration is 20 cm.