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## Homework Statement

A pendulum of length 2.0 m makes small angle oscillations with an amplitude of 15 degrees.

a) Find the time required for the bob to oscillate from 5 degrees to 10 degrees to the right.

b)Calculate the velocity and acceleration at these two positions.

## Homework Equations

ω^2 =g/l ,for small angles [not sure]

## The Attempt at a Solution

I'm stuck from a ,so I only attempted a part.

ω = (10/2)^(1/2)

t = 5(pi)/180 / ω = 5(pi)/180 / (10/2)^(1/2) = 0.039 s

The answer is 0.18s which is different from mine significantly.