The Two skaters collide and grab onto each moving to the right with a velocity of 0.87 m/s.
m₁ = 70 kg, m₂ = 65 kg, u₁ = velocity of first skater before collision = 4 m/s, u₂ = velocity of second skater before collision = - 2.5 m/s (left), v is the velocity of the skaters after they collide.
Total momentum before collision = Total momentum after collision
m₁u₁ + m₂u₂ = (m₁ + m₂)v
70(4) + 65(-2.5) = (70 + 65)v
135v = 280 - 162.5
135v = 117.5
v = 0.87 m/s
The Two skaters collide and grab onto each moving to the right with a velocity of 0.87 m/s.
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