Question 1441
What is the formula for the moment of a couple as derived in the text?
Question 1442
In the principle of moments, which direction of moment is conventionally taken as positive?
Question 1443
What is the direction of the reaction force in a lever system?
Question 1444
What is the role of the Earth's magnetic field on a compass needle according to the text?
Question 1445
Why is the moment of the reaction force at the fulcrum zero?