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System of Particles

QuestionAnswer
In pure translation motion all the particles of the object have the same ______ at any instant of time and therefore the object can be considered a _________ velocity point object
Why cant we consider a wheel as a single particle? different parts of the wheel in motion have different velocities and acceleration
What is a rigid body? a body with definite and unchanging shape
In a rolling motion, what is the velocity of the point of object that is in contact with the surface ? zero
What is rolling without slipping? is a combination of translation and rotation where the point of contact is instantaneously at rest.
What happens when an object experiences pure rotational motion about its center of mass? all of its points move at right angles to the radius in a plane perpendicular to the axis of rotation with a speed proportional to the distance from the axis of rotation…
In a rolling motion, what is the velocity of the point of object that is in contact with the surface ? zero
What is rolling without slipping? is a combination of translation and rotation where the point of contact is instantaneously at rest.
In rotation of a rigid body about a fixed axis, every particle of the body moves in a ______ , which lies in a plane _______ to the axis and has its centre on the ______ circle perpendicular axis
examples of rotation about fixed axis ceiling fan and potters wheel
what is precession? example is the axis fixed? is a change in the orientation of the rotational axis of a rotating body, i.e movement of the axis about the vertical example : spinning top may not be
What happens when an object experiences pure rotational motion about its center of mass? all of its points move at right angles to the radius in a plane perpendicular to the axis of rotation with a speed proportional to the distance from the axis of rotation
motion of a rigid body which is not pivoted or fixed in some way is either ________ or a combination of ________- pure translational translational + rotational (rolling motion)
The motion of a rigid body which is pivoted or fixed in some way is _________ and it may be about a axis that is fixed or may not be rotation
Created by: Zoha Naik
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