A particle is projected at an angle `60^@` with horizontal with a speed `v = 20 m//s`. Taking `g = 10m//s^2`. Find the time after which the speed of the particle remains half of its initial speed.

A particle is projected at an angle theta from ground with speed u (g = 10 m/ s^2 )

A particle is projected at an angle 60^(@) with the horizontal with a speed 10m//s . Then, latus rectum is (Take g=10m//s^(2) )

A particle is projected at an angle of 30^(@)w.r.t. horizontal with speed 20m//s:( use g=10m//s^(2)) (i) Find the position vector of the particle after 1s . (ii) Find the angle between velocity vector and position vector at t=1s .

A particle is projected at an angle of 30^(@)w.r.t. horizontal with speed 20m//s:( use g=10m//s^(2)) (i) Find the position vector of the particle after 1s . (ii) Find the angle between velocity vector and position vector at t=1s .

A particle is projected at an angle of60∘ above the horizontal with a speed of 10m/s .When the projectile reaches highest point, change in velocity is

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

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

A particle is projected from the ground at an angle of 60^(@) with horizontal at speed u = 20 m//s. The radius of curvature of the path of the particle, when its velocity. makes an angle of 30^(@) with horizontal is : (g=10 m//s^(2)

A particle is projected with speed 'u' at an angle 60^@ with horizontal, then find the speed when its angle with horizontal changes to 30^@ .

A particle is projected at an angle theta_0 = 60^@ with horizontal, after sqrt3 seconds the angle of velocity vector with the horizontal is reduce to half of its initial value, find the speed of projection ( g = 10 m//sec^2 ).