Two masses, both equal to $100\, g$, are suspended at the ends of identical light strings of length $\lambda = 1.0\, m$, attached to the same point on the ceiling (see figure). At time $t = 0$, they are simultaneously released from rest, one at angle $\theta_1 = 1^o$, the other at angle $\theta_2 = 2^o$ from the vertical. The masses will collide

822-549

  • A

    at $\theta= 0.0^o, 0.50\, s$ later.

  • B

    at $\theta = 5.0^o$ to the right of the vertical,$0.16\, s$ later 

  • C

    at $\theta = 0.0^o, 0.13\, s$ later.

  • D

    at $\theta = 5.0^o$ to the right of the vertical,$0.10\, s$ later

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