A particle is subjected to a force $F = (3x^2 - 2x + 1)\hat{i}$ N, where $x$ is in meters. What is the work done by this force in moving the particle from $x = 0$ to $x = 2$ m?

A constant force (F) is applied on a stationary particle of mass $'m'$ . The velocity attained by the particle in a certain displacement will be proportional to

A constant force (F) is applied on a stationary particle of mass $'m'$ . The velocity attained by the particle in a certain displacement will be proportional to

A body of mass '$4$' kg is accelerated upon by a constant force travels a distance of '$5$' m in the first second and a distance of '$2m$' in the third second. The force acting on the body is