List of top Physics Questions on work, energy and power asked in Rajasthan PMT

Electron volt is a unit of

A ball of mass $m$ elastically collides with a wall with velocity $v$, the $n$ change in its momentum is equal to

An engine pumps up $100\, kg$ of water through a height of $10 \,m$ in $5 \,s$ . Given that, the efficiency of engine is $60\%$ If $ g=10\,ms^{-2}$ the power of this engine is

For inelastic collision between two spherical rigid bodies

If force $\vec{ F }= 5 \hat{ i }+3 \hat{ j }+4 \hat{ k }$ makes a displacement of $\vec{ s }=6 \hat{ i }-5 \hat{ k }$, work done by the force is :