The length of the pendulum is 20 cm. If the pendulum
swings one though an angle equal to one radian, the distance moved by the tip is equal
to r or 20 centimeter as the length of the pendulum is 20
cm.
If the pendulum swings through an angle equal to 0.7
radians the distance traveled by the tip of the pendulum is 0.7*20 = 14
cm
The required distance moved by the tip of
the pendulum during the swing is 14 cm.
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