Question

A simple pendulum completes 20 oscillations in 30sec. How much time does it take to move from an extreme position to mean position?

Answer 1

Answer:

0.375 sec

Explanation:

By the unitary method

20 oscillation - 30sec

1 oscillation- 30÷20sec = 1.5sec

practically U can imagine that:

1 oscillation = from mean position to left extreme position then again to mean position & then to ri8 extreme position and back to mean position.Ok

So 1.5 sec should be ÷ by 4

then 1.5sec ÷ 4 = 0.375 sec.

Answer 2

Answer:

0.357 seconds

Explanation:

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