A BODY THROWN HORIZONTALLY FROM THE TOP OF THE BUILDING WITH A VELOCITY OF 10 m/s FALLS 30 m AWAY - Physics - Motion In A Plane

Question

A BODY THROWN HORIZONTALLY FROM THE TOP OF THE BUILDING WITH A
VELOCITY OF 10 m/s FALLS 30 m AWAY FROM THE BUILDING WHAT IS THE
HEIGHT OF THE BUILDING? (g=9 8)

Peter Fernandes · Accepted Answer

Understand that the equation of the projectile is given by
y=xtanθ-gx22u2cos2θ
Now substitute
x=30u=10θ=0
Hence
y=30tan0-10×3022×102cos20y=-10×9002×100y=-45 m

A BODY THROWN HORIZONTALLY FROM THE TOP OF THE BUILDING WITH A VELOCITY OF 10 m/s FALLS 30 m AWAY FROM THE BUILDING . WHAT IS THE HEIGHT OF THE BUILDING? (g=9.8)