Homework Statement
A grandfather clock has a pendulum that consists of a thin brass disk of radius r and mass m that is attached to a long thin rod of negligible mass. The pendulum swings freely about an axis perpendicular to the rod and through the end of the rod opposite the disk, as shown in...
Homework Statement
In the figure below, two skaters, each of mass 60 kg, approach each other along parallel paths separated by 3.4 m. They have opposite velocities of 2.1 m/s each. One skater carries one end of a long pole with negligible mass, and the second skater grabs the other end of it as...
Homework Statement
The figure below shows three rotating, uniform disks that are coupled by belts. One belt runs around the rims of disks A and C. Another belt runs around a central hub on disk A and the rim of disk B. The belts move smoothly without slippage on the rims and hub. Disk A has...
Homework Statement
A large yo-yo is released from a crane over San Francisco Bay. The 129 kg yo-yo consists of two uniform disks of radius 30 cm connected by an axle of radius 3.2 cm.
(a) What is the magnitude of the acceleration of the yo-yo during its fall?
(b) What is the magnitude of the...