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narmin

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#1
A projectile is shot with velocity of 20 mls in a direction which makes an angle of
15
with the vertical axis. At some point of its trajectory, the projectile splits in two
identical pieces in such a way that the internal forces which caused the splitting only
acted horizontally on each piece. By supposing that one piece fell 12 m far from the
shooting point and that all trajectories are contained in the same plane, how far did
the other piece fall from the shooting point? (Neglect the air resistance and adopt 10
rn/s2 as the local acceleration of gravity.) (Given that sine 15 =0.26 and cos 15 =
0.97)
A. 20m or 60 m"
B. 17mor53 m
C. 25m or 55 m
D.28morS2m

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