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Couples moment and torque Video Lecture | Crash Course: Mechanical Engineering (ME)
FAQs on Couples moment and torque Video Lecture - Crash Course: Mechanical Engineering (ME)
| 1. What is a couple moment and torque? |  |
Ans. A couple moment refers to the rotational force exerted on an object when two equal and opposite forces act on it but do not pass through the same point. Torque, on the other hand, is the measure of the turning force or rotational force that causes an object to rotate around an axis.
| 2. How are couple moment and torque related? | |
Ans. Couple moment and torque are related as they both involve the application of forces to cause rotation. Torque is a general term that refers to the rotational force, while a couple moment specifically refers to the rotational force created by a pair of equal and opposite forces that do not share the same point of application.
| 3. What are some examples of couple moments in everyday life? | |
Ans. There are several examples of couple moments in everyday life. One common example is opening a door by applying force at the doorknob, causing the door to rotate about its hinges. Another example is tightening or loosening a bolt using a wrench, where the force is applied at a distance from the center of rotation.
| 4. How is torque calculated? | |
Ans. Torque is calculated by multiplying the force applied to an object by the perpendicular distance between the point of application and the axis of rotation. Mathematically, torque (τ) is equal to the force (F) multiplied by the lever arm or moment arm (r), expressed as τ = F * r. The SI unit for torque is Newton-meter (Nm).
| 5. How does torque affect rotational motion? | |
Ans. Torque plays a crucial role in determining the rotational motion of an object. If the torque acting on an object is zero, the object will not rotate. However, if a nonzero torque is applied, it will cause the object to rotate with an acceleration that depends on the moment of inertia of the object. The greater the torque applied, the faster the object will rotate.
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Dec 22, 2024 Last updated |
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