Question

Two body of mass 3 kg and 4 kg moves with a velocity of 5 metre per second and 6 metre per second. respectively in one direction after collision both moves with 0 velocity. find the velocity.​

Answer 1

Answer:

Given : m

1

=3kg m

2

=4kg u

1

=4 m/s u

2

=3 m/s

Let common velocity of the body be V

Applying conservation of momentum :

m

1

u

1

−m

2

u

2

=(m

1

+m

2

)V

3×4−4×3=(3+4)V ⟹V=0 m/s

Explanation:

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Answer 2

Explanation:

m1 = 3 kg

m2 = 4 kg

u1= 4m/s

u2 = 3 m/s

Let common velocity of the body be V

m1u1 - m2u2=( m1+m2) V

3×4 - 4×3 =(3+4)V

V= 0m/s