The adjoining diagram shows the velocity versus time plot for a particle. The work done by the force on the particle is positive from
The adjoining diagram shows the velocity versus time plot for a particle. The work done by the force on the particle is positive from
$A$ to $B$
$B$ to $C$
$C$ to $D$
$D$ to $E$
The adjoining diagram shows the velocity versus time plot for a particle. The work done by the force on the particle is positive from
From the graph it is clear that force is acting on the particle in the region $AB$ and due to this force kinetic energy (velocity) of the particle increases. So the work done by the force is positive.