state gov BSSC Laboratory Assistant Mock Test Series 2025 Physics Motion in a Straight Line Kinematic equations for uniformly accelerated motion
A particle is released from height S from the surface of the Earth. At a certain height its kinetic energy is three times its potential energy. The height from the surface of earth and the speed of the particle at that instant are respectively :
1
\(\frac{S}{4},\sqrt {\frac{{3gS}}{2}} \)
2
\(\frac{S}{4},\frac{{3gS}}{2}\)
3
\(\frac{S}{4},\frac{{\sqrt {3gS} }}{2}\)
4
\(\frac{S}{2},\frac{{\sqrt {3gS} }}{2}\)