Distinguish between:
(a) Rectilinear and Curvilinear motion
(b) Rotation and Revolution
Give one example of each from our daily life
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a) rectilinear
all particles of the body travel the same distance along the parallel straight lines
ex: an athlete running 1000mts along a straight track
a) curvilinear
the trajectories of the individual particles of the body are curved ,although the orientation of the body in Space doesn't change
ex : a stone thrown into the air at an angle
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b) rotation
when an object turns around an internal axis
ex: the earth turns around an axis
b) revolution
when an object circles an external axis
ex: the earth circles the sun
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