Question

Distinguish between:
(a) Rectilinear and Curvilinear motion
(b) Rotation and Revolution
Give one example of each from our daily life​

Answer 1

Answer:

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