you're not suppose to give out full solutions or the answer.saiaspire said:Let A be the angle and u be the velocity of projection and g ( accel due to gravity)
Range (R) = u^2sin A^2/2g
Max Height(H)=u^2sin2 A/g
sin 2 A = 2 sin A cos A
equate R and H ( since they should be equal)..
u will get sin A/cos A = 4
but sin A/cos A = tan A
therfore A should be 76 degrees...
Projection angle is the angle at which an object or image is projected onto a surface. It is typically measured from the horizontal plane and can affect the size, shape, and distortion of the projected image.
The projection angle can be calculated using trigonometric functions based on the distance from the projector to the surface and the height at which the projector is mounted. It can also be determined by the type of projection, such as 2D or 3D, and the specific projection method being used.
The ideal projection angle varies depending on the type of projector and the intended use. In general, a perpendicular projection angle (90 degrees) will result in the most accurate and least distorted image. However, for certain projection techniques, such as rear projection, a specific angle may be recommended for optimal viewing.
The projection angle can greatly impact image distortion, particularly in 3D projections. A larger angle can result in more distortion, while a smaller angle can create a more accurate image. Additionally, the shape and angle of the surface being projected onto can also affect distortion.
Yes, the projection angle can be adjusted by changing the distance and/or height of the projector, or by using specialized lenses or software to alter the angle. Some projectors also have manual or automatic keystone correction capabilities to adjust the angle and reduce distortion in the projected image.