A 27.0 g object moving to theright at 18.0 cm/s overtakes and collideselasticall

Question

A 27.0 g object moving to theright at 18.0 cm/s overtakes and collideselastically with a 10.0 g object moving inthe same direction at 15.0 cm/s. Find the velocity of each objectafter the collision. 27.0 g object 1 cm/s 10.0 g object 2 cm/s A 27.0 g object moving to theright at 18.0 cm/s overtakes and collideselastically with a 10.0 g object moving inthe same direction at 15.0 cm/s. Find the velocity of each objectafter the collision. 27.0 g object 1 cm/s 10.0 g object 2 cm/s 27.0 g object 1 cm/s 10.0 g object 2 cm/s

Explanation / Answer

v1=[m1-m2]u1/[m1+m2 ] +    [2m2u2/m1+m2]=

            17*18/45 +20*15/45=13.46cm/sec

v2=[m2-m1]u2/[m1+m2] +    [2m1u1/m1+m2]

   =-17*15/45+54*18/45=15.93cm/sec

27.0 g object 1 cm/s 10.0 g object 2 cm/s

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