A boy playing on the roof of a 10 m high building throws a ball with a speed of 10 m/s at an angle of … with the horizontal. How far from the throwing point will the ball be at the height of 10 m from the ground? …

Option D. From the figure it is clear that maximum horizontal range

Motion in a Plane

JEE Main 2003 · Annual, Paper 1 · Q7772

PhysicsMedium53×since 2003Q7772

A boy playing on the roof of a 10 m high building throws a ball with a speed of 10 m/s at an angle of

30^\circ

with the horizontal. How far from the throwing point will the ball be at the height of 10 m from the ground?

\left[ {g = 10m/{s^2},\sin 30^\circ = {1 \over 2},\cos 30^\circ = {{\sqrt 3 } \over 2}} \right]

JEE Main 2003 · Annual, Paper 1 · Q7772

PhysicsMedium53×since 2003Q7772

A boy playing on the roof of a 10 m high building throws a ball with a speed of 10 m/s at an angle of

30^\circ

with the horizontal. How far from the throwing point will the ball be at the height of 10 m from the ground?

\left[ {g = 10m/{s^2},\sin 30^\circ = {1 \over 2},\cos 30^\circ = {{\sqrt 3 } \over 2}} \right]