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Questions and Answers
What is the formula for calculating torque?
What is the formula for calculating torque?
- $\tau = r \div F$
- $\tau = F + r$
- $\tau = F - r$
- $\tau = F \times r$ (correct)
In which unit is force measured?
In which unit is force measured?
- Joule
- Newton (N) (correct)
- Watt
- Pascal (Pa)
What does it mean if the torque is zero?
What does it mean if the torque is zero?
- The angle between the force and the arm length is zero
- The force is passing through the pivot point (correct)
- The applied force is zero
- The length of the arm is zero
What are the conditions for a body to be in mechanical equilibrium?
What are the conditions for a body to be in mechanical equilibrium?
What represents the center of mass in an object?
What represents the center of mass in an object?
How can the direction of torque be obtained?
How can the direction of torque be obtained?
What is the condition for a body to be in stable equilibrium under the action of gravity?
What is the condition for a body to be in stable equilibrium under the action of gravity?
In unstable equilibrium, what happens if the center of mass is still above its base?
In unstable equilibrium, what happens if the center of mass is still above its base?
Where is the center of gravity of an erect person with arms at the side located?
Where is the center of gravity of an erect person with arms at the side located?
What does a person tend to do when carrying an uneven load?
What does a person tend to do when carrying an uneven load?
What problem do people who have lost an arm often experience?
What problem do people who have lost an arm often experience?
What is the torque produced by a person's weight if their mass is 70 kg and gravitational acceleration is 9.8 m/s^2?
What is the torque produced by a person's weight if their mass is 70 kg and gravitational acceleration is 9.8 m/s^2?
What is the opposite restoring torque due to a person’s weight if their mass is 70 kg and gravitational acceleration is 9.8 m/s^2?
What is the opposite restoring torque due to a person’s weight if their mass is 70 kg and gravitational acceleration is 9.8 m/s^2?
What force is required to topple an erect person standing at rigid attention if Fa x 1.5 = 68.6?
What force is required to topple an erect person standing at rigid attention if Fa x 1.5 = 68.6?
What torque is produced by the applied force when pivoting around point A if Fa x ra = Fa x 1.5?
What torque is produced by the applied force when pivoting around point A if Fa x ra = Fa x 1.5?
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