A small ball is projected up a smooth inclined plane with an initial speed of 10m//s at 30^(@) from the bottom edge of the slope. It returns to the edge after 2s. The ball is in contact with the inclined plane throughout the process. The inclination angle (in degree) of the plane is N. The value of N//6 is

A small ball is projected up a smooth inclined plane with an initial s

1.	A small ball is projected up a smooth inclined plane with an initial speed of 10m//s at 30^(@) from the bottom edge of the slope. It returns to the edge after 2s. The ball is in contact with the inclined plane throughout the process. The inclination angle (in degree) of the plane is N. The value of N//6 is
Answer» ANSWER :5