Question

The angle of projection with horizontal at which a particle must be projected on an inclined plane having inclination 45, so that it has maximum range up the inclined plane is

Answer 1

Explanation:

The angle of projection for maximum range on horizontal plane is 45 degrees. The angle of inclination of the inclined plane is 30 degrees. Hence, the angle of projection from inclined plane is equal to 45 - 30 = 15 degrees.