A ball is projected with kinetic energy $E$, at an angle of $60 ^ { \circ }$ to the horizontal. The kinetic energy of this ball at the highest point of its flight will become : (1) Zero (2) $\frac { E } { 2 }$ (3) $\frac { E } { 4 }$ (4) $E$
A ball is projected with kinetic energy $E$, at an angle of $60 ^ { \circ }$ to the horizontal. The kinetic energy of this ball at the highest point of its flight will become :\\
(1) Zero\\
(2) $\frac { E } { 2 }$\\
(3) $\frac { E } { 4 }$\\
(4) $E$