A pendulum swings through an angle of 30° and describes and arc of 8.8 cm in length then find out the length of Pendulum.
Answers
Answered by
17
Solution:
Step-by-step explanation:
Let length of the pendulum be 'l'cm.
Length of the arc = 8.8 cm
=> ¢πl/180° = 8.8 cm
=> 30° × π × l / 180° = 8.8 cm
=> πl = 8.8 × 6
=> 22/7 × l = 52.8 cm
=> l = 52.6 × 7 / 22 cm = 16.8 cm
Therefore, l = 16.8 cm
Step-by-step explanation:
Let length of the pendulum be 'l'cm.
Length of the arc = 8.8 cm
=> ¢πl/180° = 8.8 cm
=> 30° × π × l / 180° = 8.8 cm
=> πl = 8.8 × 6
=> 22/7 × l = 52.8 cm
=> l = 52.6 × 7 / 22 cm = 16.8 cm
Therefore, l = 16.8 cm
Answered by
1
Answer:
Explanation:
Formula for the length of arc =theta/360×2pie×r
30/360×2×22/7×r=8.8
Further simplification,we get
11/21×r=8.8r
=16.8
So length of pendulum is 16.8cm.
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