why (a) is correct? Which of the following statements most accurately describes
ID: 1607487 • Letter: W
Question
why (a) is correct?
Which of the following statements most accurately describes the center of gravity of an object? a. It is the point on the object where all the weight can be considered to act when calculating the torque due to the weight of the object. b. It is the point on the object where all the weight is concentrated and that point always serves as a point on the axis of rotation. c. It is the only point where gravity acts on an object. d. It is the point where all the mass is concentrated. e. It must be experimentally determined for all objects.Explanation / Answer
center of gravity is a point where total weight of the body is supposed to be concentrated. we calculate toque due to the own weght we consider the weight is acting at this point. For example let a meter scale is made of uniform material. it is pivoted at one end and left then rotates. the nececessry torque for the rotation is the product of weight of the scale and distance from axis rotation. the point of action of force is taekn from the center of the scale which is center of gravity.
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