Answer:
v = 1.48 m / s
Explanation:
This is an exercise in conserving the moment. Let's define a reference system made up of the student, the scooter and the collected mass. For this system the forces during the collection are internal and element and conserves
initial interim. Before picking up the merchandise
    p₀ = M v₀
final instant. After picking up the object
    p_f = (M + m ') v
how the moment was created
    p₀ = p_f
    M v₀ = (M + m) v
let's calculate
    v = [tex]\frac{M}{m+ M}[/tex]  vo
    v = 78.2 / (6.4 +78.2) 1.60
    v = 1.48 m / s
