Answer:
Speed of another player, v₂ = 1.47 m/s
Explanation:
It is given that,
Mass of football player, m₁ = 88 kg
Speed of player, v₁ = 2 m/s
Mass of player of opposing team, m₂ = 120 kg
The players stick together and are at rest after the collision. It shows an example of inelastic collision. Using the conservation of linear momentum as :

V is the final velocity after collision. Here, V = 0 as both players comes to rest after collision.



So, the speed of another player is 1.47 m/s. Hence, this is the required solution.
 
        
             
        
        
        
Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
        
             
        
        
        
The possible cause of difference in impulse is the change in momentum of the objects in the two problems.
<h3>
What is impulse?</h3>
Impulse is effect produced by applied forces. Impulse is the product of force and time of action.
J = Ft
<h3>Change in momentum</h3>
Impulse is the change in momentum of an object.
J = ΔP
where;
ΔP is change in momentum
Thus, the possible cause of difference in impulse is the change in momentum of the objects in the two problems.
Learn more about impulse here: brainly.com/question/25700778