Answer:
(b,
d, f)
Horizontal component of \[\upsilon \,=\upsilon \,\cos \,{{30}^{o}}\] remains constant
throughout the journey of the projectile. The vertical component of \[\upsilon
\,=\upsilon \,\sin \,{{30}^{o}}\] decreases after projection and becomes zero
at the highest point. Then projectile begins to fall downwards and vertical
component goes on increasing. When bullet hits the soft target, part of K.E. of
bullet is transferred to the target. Hence internal energy of the target
increases. Target continues to move along the same parabolic path if only force
of gravity acts on it.
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