A mass m moving horizontally (along the x-axis) with velocity v collides and sticks to the mass of 3 m moving vertically upward (along the y-axis) with velocity 2 v . The final velocity of the combination is

Question

A mass m moving horizontally (along the x-axis) with velocity v collides and sticks to the mass of 3 m moving vertically upward (along the y-axis) with velocity 2 v . The final velocity of the combination is, 1 4 v i ^ + 3 2 v j ^, 1 3 v i ^ + 2 3 v j ^, 2 3 v i ^ + 1 3 v j ^, 3 2 v i ^ + 1 4 v j ^

MARKS App · Accepted Answer

As the two masses stick together after collision, hence it is inelastic collision. Therefore, only momentum is conserved. ∴ m v i ^ + 3 m 2 v j ^ = 4 m v → v → = v 4 i ^ + 6 4 v j ^ = v 4 i ^ + 3 2 v j ^

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