Q # 1. the film crew CANDID CAMERA replaces person's briefcase with an identical one that contains a mounted and spinning flywheel. explain what happens when the person tries to carry the briefcase around the corner?
You're right, in that the flywheel will try to keep its rotation axis pointing north. But the person carrying the briefcase is more than strong enough to force the change. The result is a sort of compromise: the person, we say, produces a torque on the angular momentum of the flywheel, causing the direction of the angular momentum to pivot at right angles to its current direction and the person's applied force. Since the angular momentum was pointing north and the applied force is eastward, the torque on the flywheel will point toward the floor, so that the flywheel will orient itself into a horizontal plane, causing the briefcase to twist violently in the person's grip. (If you're not expecting this, it's rather alarming...)it will resist the change and try to stay in its original position, am i right ?