Answer:5.62 m/s
Explanation:
Given
Inclination [tex]\theta =25^{\circ}[/tex]
Coefficient of kinetic Friction [tex]\mu _k=0.15[/tex]
mass of Anissa's [tex]m=55 kg[/tex]
time interval [tex]t=2 s[/tex]
acceleration of the system
[tex]a=g\sin \theta -\mu _kg\cos \theta [/tex]
[tex]a=9.8\sin (25)-0.15\cdot 9.8\cos (25)[/tex]
[tex]a=4.14-1.33=2.81 m/s^2[/tex]
[tex]v=u+at[/tex]
where v=Final Velocity
u=Initial Velocity
a=acceleration of system
t=time
[tex]v=0+2.81\times 2[/tex]
[tex]v=5.62 m/s[/tex]
