A rocket is accelerating upward at 3.70 m/s^2 from the launchpad on the earth. Inside a small 1.50-Kg ball hangs from the ceiling by a light 1.10m wire.
a)If the ball is displaced 8.50 degrees from the vertical and released, find the amplitude of the resulting swings of this pendulum
b)If the ball is displaced 8.50 degrees from the vertical and released, find the period of the resulting swings of this pendulum
The Attempt at a Solution
okay first we convert θ into radians whihc is 0.1484 rads
the new g' of the rocket is g-arocket=9.8-3.7=6.1 m/s^2
A=x/cos(wt+θ) now taking t for 0 (this is probably the part where I made my mistake)
A=0.16324/cos(0+0.1484)=0.1148 for the amplitude
In both cases my answers are wrong, if anyone could give me a pointer I would appreciate the help.