An object of mass $m$ initially at rest is acted upon by a single force $f$ over a distance of $d$. The final velocity of the mass is

Question

Quizplus · Accepted Answer

The work done on the object by the force is equal to the change in kinetic energy. The work done is $f \cdot d$, and the change in kinetic energy is $\frac{1}{2} m v^2$. Setting these equal and solving for $v$ gives $v = \sqrt{2fd/m}$.

An Object of Mass mmm Initially at Rest Is Acted Upon by a Single Force

An Object of Mass $m$ Initially at Rest Is Acted Upon by a Single Force