Answer:
1.3 m/sec
Explanation:
Mass of the first glider that is [tex]m_1=0.050\ kg[/tex]
Velocity before hitting the second glider that is [tex]v_1[/tex] = [tex]5.2m/sec[/tex]
Mass of the second glider is that is [tex]m_2=0.150\ kg[/tex]
After hitting the combined mass [tex]=m_1+m_2=0.050+0.150=0.200\ kg[/tex]
We know that momentum is always conserved
So [tex]m_1v_1=(m_1+m_2)v_2[/tex]
[tex]0.050\times 5.2=0.2\times v_2[/tex]
[tex]v_2=1.3 m/sec[/tex]
