A block of mass \( m \) starts from rest and slides down a frictionless semi-circular track from...

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A block of mass \( m \) starts from rest and slides down a frictionless semi-circular track from a height \( h \) as shown. When it reaches the lowest point of the track, it collides with a stationary piece of putty also having mass \( \mathrm{m} \). If the block and the putty stick together and continue to slide, the maximum height that the block-putty system could reach is
(1) \( h / 4 \)
(2) \( h / 2 \)
(3) \( h \)
(4) independent of \( h \)
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