physics ch 11 T or F
a spinning wheel will maintain its state of angular momentum unless acted on by an external torque
T
gymnasts change their rotational inertia while going through gymnastic routines
T
ice skaters can increase their spin rate by using the conservation of angular momentum
T
in order to increase his or her rotational inertia, a tightrope walker can carry a long stick
T
rotational inertia is the resistance an object has to change s in it s rotational state
T
torque is the product of a force exerted on an object times the lever arm
T
a short pendulum has more rotational inertia than a long pendulum of the same mass
F
if you kick a football through its center of gravity, it will tumble as it sails through the air.
F
in order for a seesaw to be in rotational equilibrium, the sum of the torque acting on it need not be balanced if one person sits closer to the fulcrum than the other person
F
the distance between a turning axis and the point of contact of a perpendicular force is called the fulcrum
F
