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Classify the following as motion along a straight line, circular or oscillatory motion:
$(i)$. Motion of your hands while running.
$(ii)$. Motion of a horse pulling a cart on a straight road.
$(iii)$. Motion of a child in a merry-go-round.
$(iv)$. Motion of a child on a see-saw.
$(v)$. Motion of the hammer of an electric bell.
$(vi)$. Motion of a train on a straight bridge.
Given:
Motion of the followings-
$(i)$. Our hands while running.
$(ii)$.A horse pulling a cart on a straight road.
$(iii)$. A child in a merry-go-round.
$(iv)$. A child on a see-saw.
$(v)$. The hammer of an electric bell.
$(vi)$. A train on a straight bridge.
To do:
To classify the motion of the all of the above as motion along a straight line, circular or oscillatory motion.
Solution:
Before classification of the motion of all of the above as motion along a straight line, circular or oscillatory motion let us know about motion along a straight line, circular or oscillatory motion:
Rectilinear motion $(Motion\ along\ a\ straight\ line)$:
When an object moves along a straight linear path then its motion is said to be rectilinear motion.
A moving bus on a straight road is an example of rectilinear motion.
Circular motion:
When an object moves along a circular path with respect to time, then its motion is said to be circular motion.
The motion of the earth revolving around the sun is an example of circular motion.
The motion of a wheel is a circular motion.
Periodic motion:
When the motion of an object is repeated in a time interval, its motion is said to be a periodic motion.
The motion of a pendulum, the motion of a child's swing, and the vibrating tuning fork are examples of periodic motion.
Classification of the motion as motion along a straight line, circular or oscillatory motion:
From the above definitions we can classify the motion of the all of the above as motion along a straight line, circular or oscillatory motion as below:
$(i)$. The motion of our hands while running is an example of oscillatory motion as this motion gets repeated to and fro after a fixed time interval.
$(ii)$. The motion of a horse pulling a cart on a straight road is a straight linear motion.
$(iii)$. The motion of a child in a merry-go-round is a circular motion.
$(iv)$. The motion of a child on a see-saw is an oscillatory motion as it goes up and down repeatedly.
$(v)$. The motion of the hammer of an electric bell is an oscillatory motion.
$(vi)$. The motion of a train on a straight bridge is a straight linear motion.
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