A particle is projected at an angle with the horizontal with a speed

PHYSICS · Subjective · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

A particle is projected at an angle

60^\circ

with the horizontal with a speed

v=20\ \text{m/s}

. Taking

g=10\ \text{m/s}^2

, find the time after which the speed of the particle becomes half of its initial speed.