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Alexs45
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A 0.25-kg ball attached to a string is rotating in a horizontal circle of radius 0.5 m. If the ball revolves twice every second, what is the tension in the string?
When a ball revolves, it means that it is moving around a central point in a circular motion. In this case, it is completing two full rotations or revolutions every second.
The tension in the string is directly related to the ball's revolution speed. As the ball revolves faster, the tension in the string increases because the ball exerts more force on the string as it moves.
The tension in the string is affected by the weight of the ball, the speed of its revolution, and the length and material of the string. These factors all contribute to the amount of force being exerted on the string.
Yes, the tension in the string can be higher than the weight of the ball if the ball is revolving at a high speed. This is because the speed of revolution adds to the force exerted on the string, making the tension higher than just the weight of the ball alone.
The tension in the string can be measured using a device called a tension meter or a spring scale. These instruments can measure the amount of force being applied to the string and give a numerical value for the tension. Alternatively, the tension can also be calculated using the weight of the ball, its speed of revolution, and the length and material of the string.