Question

: a body of mass 5kg is moving towards north with a velocity of 4m/s .another body of mass 3 kg is moving towards south with a velocity 2m/s .at a particular time two bodies collide and become a single body. at what velocity and at which direction the combined body will move?

Answer 1

given mass=5kg

v=4m/s

m=3kg

v=2m/s

it will move towards north

Answer 2

Towards north with 1 m/s speed

Let me explain

Resulting force is 8 kgm/s ( 20-12 kgm/s)

And now the total mass 8 kg ( 3+5kg)

Therefore, velocity = 8kgm/s /8kg

=1 m/s