A particle of mass $'m'$ and charge $'q'$ is accelerated through a potential difference of $'V'$ volt. Its energy is
$qV$
$mq\,V$
$\left( {\frac{q}{m}} \right)\,V$
$\frac{q}{{m\,V}}$
Define kinetic energy. Give its unit and dimensional formula and mention works by using it.
The adjoining diagram shows the velocity versus time plot for a particle. The work done by the force on the particle is positive from
If momentum is increased by $20\%$ , then K.E. increases by ........... $\%$
Internal forces acting within a system of particles can alter
A car accelerates from rest to $u\,m / s$. The energy spent in this process is $E\,J$. The energy required to accelerate the car from $u\,m / s$ to $2u\,m / s$ is $nE\,J$. The value of $n$ is ..............