[" 44.The speed of a projectile at its maximum height is half "],[" of its initial speed.The angle of projection is: "],[qquad [" (a) "60^(@)," (b) "15^(@)," (c) "30^(@)," (d) "45^(@)]]

The speed of a projectile at it's maximum height is half of it's initial speed. The angle of projection is

The velocity at the maximum height of a projectile is half of its initial velocity of projection. The angle of projection is

The velocity at the maximum height of a projectile is half of its initial velocity of projection. The angle of projection is

Choose the correct option (i) The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is 60^(@) . (ii) A missile is fired for maximum range with an initial velocity of 20 m//s , the range of the missile is 40 m . (iii) A ball is projected with a kinetic energy E at an angle of 45^(@) to the horizontal. At the highest point during its flight, its kinetic energy will be E//2 . (iv) An object is projected at an angle of 45^(@) with horizontal. The horizontal range and the maximum height will be in the ratio 4:1