Question

Two objects, each of moss 1.5 kg , are
moving in the same straight line
but
opposite doactions. The
velocity of each ofict is
eiz.smsl
before the collision during which
they stick together. What will be the
ve buity Life the combined
r ?
a object​

Answer 1

Answer:

Given : m

1

=m

2

=1.5 kg

u

1

=2.5 ms

−1

u

2

=2.5 ms

−1

Total mass of the combined system, M=m

1

+m

2

=2×1.5=3kg

Let the velocity of the combined system after the collision be v

Applying conservation of momentum before and after the collision :

m

1

u

1

−m

2

u

2

=Mv

1.5×2.5−1.5×2.5=3v

⟹v=0

Explanation:

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Answer 2

Given : m

1

=m

2

=1.5 kg

u

1

=2.5 ms

−1

u

2

=2.5 ms

−1

Total mass of the combined system, M=m

1

+m

2

=2×1.5=3kg

Let the velocity of the combined system after the collision be v

Applying conservation of momentum before and after the collision :

m

1

u

1

−m

2

u

2

=Mv

1.5×2.5−1.5×2.5=3v

⟹v=0