A pendulum of length l and period T is oscillating through some small angles

on planet earth (gravitational acceleration = g). At time t=0, it is at position

θ

= 0 but it has a non-zero velocity. At time

t

=

T

2

, it is at a position

θ

= 9

radians.

a.) write down an expression for the angle

θ

as a function of time.

b.) If the pendulum was placed in an elevator moving upwards at an acceleration

a, how would equation 9.3.2 in your lab notebook change? The equation is 2pisqrt(l/g)