In the figure, $($Figure $1)$ the upper ball is released from rest, collides with the stationary lower ball, and sticks to it$.$ The strings are both $55\mathrm{.}0$ cm long. The upper ball has a mass of $2\mathrm{.}00$ kg and it is initially $10\mathrm{.}0$ cm higher than the lower ball, which has a mass of $3\mathrm{.}20$ kg $.$

Part A

Find the magnitude of the momentum of the $\backslash (2\mathrm{.}00-\backslash$mathrm$\{$kg$\}\backslash )$ ball just before it collides with the $\backslash (3\mathrm{.}20-\backslash$mathrm$\{$kg$\}\backslash )$ ball.

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Part B

Find the speed of the two balls $($now stuck together$)$ at the instant immediately after the collision.

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Part C

Find the frequency of the pendulum motion after the collision.

Part D

Find the maximum angular displacement of the motion after the collision.

Give your answer in degrees.

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$\backslash (\backslash$sqrt$[\backslash$square$]\{\backslash$square$\}\backslash )$

degrees Figure