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38. A ball is projected from a point on the floor with a speed of 15 m/s at an angle of 60° with the horizontal. Will it hit a vertical wall 5 m away from the point of projection and perpendicular to the plane of projection without hitting the floor ? Will the answer differ if the wall is 22 m away ?   

similar type of question is given in ncert write down that question in comment box. 

Answer: We have u= 15 m/s and θ=60°   

So range x = (u² sin 2θ )/g  = (225*√3/2)/9.8 = 19.9 m, 

So, Yes, the ball will hit the wall at the distance of 5 m without hitting the floor. 

Yes , the answer will differ because the ball will not hit the wall at a distance of 22 m away without hitting the floor.