Question

The bird perched on the swing shown below has a mass of 41.6 g, and the base of the swing, y = 7.88 cm below the hook, has a mass of 147 g. The swing and bird are originally at rest, and then the bird takes off horizontally at 1.94 m/s. How high will the base of the swing rise above its original level? Disregard friction.

Answer 1

momentum=momentum
41.6*1.94=147*Vswing
solve for the initial velociyt of the swing, Vswing.

Now how high? it converts to graviational PE, or
mgh=1/2 m vswing^2
solve for height h.

Answer 2

wish I could help but I have to right 3 essays in 1 hour and have to finish a water rocket
love jazzy