Astudent standing on a knoll throws a snowball horizontally 4.5 meters above the level ground toward a smokestack 15 meters away. the snowball hits the smokestack 0.65 second after being released. [neglect air resistance.]
approximately how far above the level ground does the snowball hit the smokestack?

2.4 m

Explanation:

Consider the motion along the vertical direction

= initial position of ball above the ground = 4.5 m

= time taken by the ball to hit the smokestack = 0.65 s

= initial velocity of the ball along vertical direction

= acceleration due to gravity = - 9.8 m/s²

= position of ball at the time of hitting the smokestack

Using the kinematics equation

inserting the above values

true

explanation: