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Science Affairs Physics

Consider the following statements:

A simple pendulum is set into oscillation.

Then

1. the acceleration is zero when the bob passes through the mean position

2. in each cycle the bob attains a given velocity twice

3. both acceleration and velocity of the bob are zero when it reaches its extreme position during the oscillation

4. the amplitude of oscillation of the simple pendulum decreases with time

Which of these statements are correct?

1 and 2

3 and 4

1, 2 and 4

2, 3 and 4

Only velocity of the bob is zero when it reaches its extreme position during the oscillation.

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