A small disk of radius R1 is mounted coaxially with a larger disk of radius R2. The disks are securely fastened to each other an
d the combination is free to rotate on a fixed axle that is perpendicular to a horizontal frictionless table top, as shown in the overhead view below. The rotational inertia of the combination is I. A string is wrapped around the larger disk and attached to a block of mass m, on the table. Another string is wrapped around the smaller disk and is pulled with a force F as shown. The acceleration of the block is:
Work done is equal to force by distance; so you take the force exerted, in newtons, and multiply that by the direction it's moved (from the starting point in a line, not along the path it's taken.)
Fixed volume and shape -Particles are locked into place Not easily compressible -Little free space between particles Does not flow easy -Particles cannot move past each other
