Terezagonzalez91001 Terezagonzalez91001
  • 19-09-2018
  • Social Studies
contestada

Emily throws a soccer ball out of her dorm window to allison, who is waiting below to catch it.

Respuesta :

saadhussain514
saadhussain514 saadhussain514
  • 28-09-2018

Answer is :

6.778 meters.

Explanation:

y = u t + 1/2 at²

6 m = u sinθ + 1/2 at²

6 m = (12) sin 30°t + 1/2 (9.81)t²

4.905 t² + 6 t -6 = 0

By solving, t = 0.6522 s.

The horizontal distance :

x = u cosθ t

= (12) cos 30° (0.6522)

= 6.778 meters.

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