state gov UP Police Assistant Operator (Radio Cadre) Mock Test Physics Motion in a Straight Line Kinematic equations for uniformly accelerated motion
A ball is dropped from height h under gravity g. How-much time the ball will take to reach ground?
1
\(\sqrt {2h \over g}\)
2
\( {2h \over g}\)
3
\({h^2 \over 2g}\)
4
\(\sqrt {h \over 2g}\)