The range of a particle when launched at an angle of `15^@` with horizontal is 1.5 km.What is the range of the projectile when launched at an angle of `45^@` to the horizonta?

A body P of mass m is thrown with velocity u at an angle 30^@ to the horizontal and another body Q is of teh same mass be projected with velocity u at an angle 60^@ to the horizontal .Find the ratio of the horizonta range nd maximum heights of P and Q.

An object is thrown along a direction inclined at an angle of 45^@ with the horizontal direction. The horizontal range of the particle is equal to

A projectile is fired at an angle of 45^@ with the horizontal.Elevation angle of the projectile at its highest piont as seen from the point of projection is :

A projectile is projectile at an angle of 15^@ to te horizontal with speed v. if another projectile is rojected with the same speed, then at what angle with the horizontal it must be projected so as to have the same range.

What is the angle of reflection when a ray of light is incident normally to the mirror?

The horizontal range of a projectile fired at an angle of 15^@ is 50 m. If it is fired at an angle of 45^@ , what will be its range?

Show that the horizontal range is maximum when angle of projection is 45^@ .

What is the angle of incidence when incident ray falls normal to the mirror?

In the circle of 5cm.radius, what is the length of the arc which subtends and angle of 33^(@)15' at the centre.