Classify the following as motion along a straight line, circular or oscillatory motion:
a) Motion of our hands while running.
b) Motion of a horse pulling a cart on a straight road.
c) Motion of a kid in a merry-go-round.
d) Motion of a child on a seesaw.
e) Motion of the hammer of an electric bell.
f) Motion of a train on a straight bridge.
(a) Motion of our hands while running - It is an oscillatory motion since our hands retrace the same path and also reverses the direction.
(b) Motion of a horse pulling a cart on a straight road - It is a straight line motion.
(c) Motion of a kid in a merry-go-round - It is circular motion since the merry-go-round traces a circular path.
(d) Motion of a child on a seesaw - It is an oscillatory motion since the motion is back and forth.
(e) Motion of the hammer of an electric bell. It is an oscillatory motion since the motion is back and forth.
(f) Motion of a train on a straight bridge. It is a straight-line motion.