Question

In of the lectures, the instructor invited the lab technician to present a few demos. In one of them, the technician was sitting at rest on a stool which could rotate freely and was holding a spinning wheel. Upon turning the wheel upside-down, the technician started to rotate. This is a consequence of the conservation of

linear momentum

force

angular momentum

mechanical energy

moment of inertia

Answer 1

ANSWER
The technician was sitting at rest on a stool which could rotate freely and was holding a spinning wheel. Upon turning the wheel upside-down, the technician started to rotate. This is a consequence of the conservation
(ANGULAR MOMENTUM)

EXPLANATION: By the conservation of angular momentum, the momentum of a system always remains conserved so when turning the wheel upside down the technician start to rotate so the angular momentum must be conserved.