Physics

To find the location where the penny hit the ground, we can calculate the time it takes for the penny to hit the ground and then determine the distance traveled during that time.

Since the penny is thrown horizontally, its initial vertical velocity is 0 m/s. The only force acting on the penny is gravity in the vertical direction. Therefore, the time it takes for the penny to hit the ground can be calculated using the equation:

dy = Viyt + 1/2 at²

Where,
dy (vertical displacement) = -45m ( a 45m roof, negative sign because the motion is downward)
Viy (initial vertical velocity)  = 0m/s (Since the penny is thrown horizontally)
a (ac...