A particle of mass 2 kg moves on a horizontal plane under the action of force $F=(2 \hat i+2 \hat j)N$. The body is displaced from (0,0) to (1m,1m) If the initial speed of the particle is 2m/s find its final speed

Question

$$(a)\;2 \sqrt 2\;m/s \quad (b)\;4 \;m/s \quad (c)\;4 \sqrt 2 m/s \quad (d)\;5\;m/s$$