The force $F,$ acting in a constant direction on the $20-$kgblock, has a magnitude which varies with position $s$ of the block.

Figure

$1$ of $1$

Part A

Determine the speed of the block after it slides $3$ m $.$ When $s=0$ the block is moving to the right at $2\frac{m}{s}.$ The coefficient of kinetic friction between the block and surface is ${}_k=0\mathrm{.}3.$

$($Figure $1)$

Express your answer with the appropriate units.