Answer :
[tex]Work=\frac{Force}{distance}\\\\Force=mass*gravity\\Force=0,550*9,8=5,39N\\
distance=3,5m\\\\
Work=\frac{5,39N}{3,5m}=1,54J\\\\
Kinetic\ energy=Work=1,54J\\\\
Kinetic \ energy=\frac{1}{2}mv^2\ \ \ |*2\\
2Kinetic \ energy=mv^2\\\
\sqrt{\frac{2Kinetic \ energy}{m}}=v\\\\
velocity=\sqrt{\frac{2*1,54}{0,55}}=\sqrt{\frac{3,08}{0,55}}=\sqrt{5,6}=2,37\frac{m}{s}
[/tex]
