What is meant by the period of a pendulum?
1 answer:
Answer:
The time it takes for the pendulum to make one complete cycle
Explanation:
The period of a pendulum is the time it takes for the pendulum to make one complete oscillation, which means the time it takes for the pendulum to come back to its original position (so, one left swing+one right swing).
The period of a pendulum is given by the formula
where L is the length of the pendulum and g is the acceleration due to gravity. As we can see from the equation, the period of a pendulum does not depend on the mass attached to the pendulum, but only on its length and on the strength of the gravitational field.
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Answer:
Explanation:
Torque is defined as the cross product between the position vector ( the lever arm vector connecting the origin to the point of force application) and the force vector.
Due to the definition of cross product, the magnitude of the torque is given by:
Where is the angle between the force and lever arm vectors. So, the length of the lever arm (r) is minimun when
is equal to one, solving for r: