Two football players collide head-on in midair while chasing a pass. the first player has a 110 kg mass and an initial velocity of 4.20 m/s in the positive x direction, while the second player has a 135 kg mass and initial velocity of 3.40 m/s in the negative x direction. what is the x component of their velocity just after impact if they cling together? (indicate the direction with the sign of your answer.)

v = 0.012 m/s

Explanation:

This is a problem of momnetun, to solve it we must define a system that includes both players. In this case the forces during the crash are internal forces and the momentum is preserved

Initial

      p₀ = m₁ v₁₀ + m₂ v₂₀

Final

      = (m₁ + m₂) v

Because the two players are united

    p₀ =

    m₁ v₁₀ + m₂ v₂₀ = = (m₁ + m₂) v

    v = (m₁ v₁₀ + m₂ v₂₀) / (m₁ + m₂)

let's calculate

    v = (110 4.20 - 135 3.40) / (110 + 135)

    v = 3/245

    v = 0.012 m/s

The positive sign indicates that they move to the right

he kicked it 10 feet straight up into the air? i think this works.