the wheel turns through equal angles.
if a wheel turns with constant angular speed then…
counterclockwise about an axis that is perpendicular to the page.
if the angular velocity vector of a spinning body points out of the page then, when viewed from above the page, the body is spinning
the body is slowing down
the angular velocity vector of a spinning body points out of the page. if the angular acceleration vector points into the page then
vertically upward
a car travels north at constant velocity. it goes over a piece of mud, which sticks to the tire. The initial acceleration of the mud, as it leaves the ground is
increases in magnitude and becomes more nearly radial
a wheel starts from rest and spins with a constant angular acceleration. as time goes on the acceleration vector for a point on the rim
speed of rotation
the rotational inertia of a wheel about its axle does not depend upon its
the one made from the more dense material
two uniform circular disks having the same mass and the same thickness are made from different materials. the disk with the smaller rotational inertia is
less
a uniform solid cylinder made of lead has the same mass and the same length as a uniform solid cylinder made of wood. the rotational inertia of the lead cylinder compared to the wooden one is…
drill holes near the axis and put the material near the rim
to increase the rotational inertia of a solid disk about its axis without changing its mass
applying the force at the rim, tangent to the rim
a force with a given magnitude is to be applied to a wheel. the torque can be maximized by
applied tangentially at the rim
a disk is free to rotate on a fixed axis. a force of given magnitude F, in the plane of the disk is to be applied. Of the following alternatives the greatest angular acceleration is obtained if the force is
pulls on both blocks, but exerts a greater force on the heavier block
a block is attached to each end of a rope that passes over a pulley suspended from the ceiling. the blocks do not have the same mass. if the rope does not slip on the pulley, then at any instant after the blocks start moving, the rope
the same
a disk starts from rest and rotates about a fixed axis, subject to a constant net torque. the work done by the torque during the second revolution is _____ as the work done during the first revolution
