A particle is projected at an angle of `60^(@)` above the horizontal with a speed of `10m//s
Channel: Doubtnut
Date: 2020-08-30

A particle is projected at an angle of `60^(@)` above the horizontal with a speed of `10m//s`. After some time the direction of its velocity makes an angle of `30^(@)` above the horizontal. The speed of the particle at this instant is s