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Grade: 9
        An object is thrown horizontally from the open
window of a building. If the initial speed of the
object is 20 m/s and it hits the ground 2.0 s later,
from what height was it thrown? (Neglect air
resistance and assume the ground is level.)

please give process
6 years ago

Answers : (1)

Sunil Kumar FP
askIITians Faculty
183 Points
							since the object is thrown horizontally
Vy=0
t=2s
Vx=20
applying equation in vertical direction
h=ut +1/2gt^2
h=1/2*9.8*4
=19.6m/s^2

thanks and regards
sunil kr
askIItian faculty
6 years ago
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