How Do You Solve the Motion of Two Colliding Pendulums?

AI Thread Summary
The discussion focuses on solving a physics homework problem involving two colliding pendulums. The first question requires calculating the length of each pendulum using the period formula, while the second question involves determining Pendulum A's maximum speed after being released from a height, suggesting the use of kinetic and potential energy concepts. The third question addresses the collision dynamics, where conservation of momentum is applied to find the mass of Pendulum B after Pendulum A stops and B moves backward. Participants emphasize using the correct equations and principles, including the period equation and conservation laws. Overall, the thread highlights the application of fundamental physics concepts to solve the problem effectively.
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AP Physics HW Help -- Motion of 2 Pendulums

Homework Statement



A system consists of two metal balls hanging by strings of length L fixed at a common point as shown. Pendulum A has a mass of 2kg and Pendulum B has a period of 2.0s.

a. What is the length L of each pendulum?
b. What is the maximum speed Pendulum A reaches after being released from a height of 0.6m above its equilibrium position (neglect friction)
c. Pendulums A and B are released at the same time from the same height, colliding right in the middle of their arcs. If Pendulum A comes to a complete stop after the collision while Pendulum B moves backward with half of its original speed, what is the mass of Pendulum B>

Homework Equations



Period equations
Kinetic Energy Maybe?
Conservation of momentum

The Attempt at a Solution



For a. I used to formula Tp=2Pi(sqrrt of L/g)
For b. I have no clue maybe use something with KE and PE
For c. Conservation of momentum formula I am thinking?HERE IS THE DIAGRAM:

http://imgur.com/GK1ZvFf
 
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