A boy kicks a football from the top of a building of height. If the line joining the initial position of the football and the point where it hits the ground makes an angle of with the ground, then find the distance of
point where it hits the ground from the foot of the building.
Step 1: Given data,
Height of building= 10 m
The ball makes angle on hiting the ground.
Step 2: Explanation
Height = 10 m.
Let the distance between the building and the point where the ball hits be ‘x’ m.
Angle made is .
So the other angle is
So, it forms a right-angled-isosceles triangle and two angles are .
So base and perpendicular distances are the same.
Hence the correct option is (D) 10 m.