How can we increase the torque by keeping force constant?
Answers
Answer:
Here's the correct answer of this question
Explanation:
Torque is the twisting force that tends to causes a rotational acceleration around some axis of rotation. With a force, F, though a moment arm length, r, directed at an angle to that moment arm, theta, the torque is:
T = F * r * sin(theta)
in SI units of Newton-meters.
With a constant force F, if r is increased, or sin(theta) is increased, the torque will increase. The sin(theta) value reaches its maximum when theta is 90 degrees (apply the force perpendicular to the moment arm). The torque is also increased by increasing the distance from the rotation axis at which you apply the force.
You can try this with a regular household door. With the door open, try to close it with just your pointer finger pushing perpendicular to the door. Is it easier when you push near the hinges or easier when you push near the handle?
Answer:
With a constant force F, if r is increased, or sin(theta) is increased, the torque will increase. The sin(theta) value reaches its maximum when theta is 90 degrees (apply the force perpendicular to the moment arm).