physic

a body is projected horizontally with a velocity of 20m/s from height of a tower 160m above the ground calculate the time of flight distance from the foot of the tower to where the object land

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  1. how long does it take to fall 160m? The horizontal speed does not affect that.

    4.9t^2 = 160

    Now, the horizontal speed does not change, so the body travels

    20t meters

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  2. what if i said it is u=20 h=160
    20/10=2m/s 160/10=16
    t=8m/s
    1.time of flight =8m/s 16/2=8m/s
    2.distance=20*10=200/10=2
    distance
    =2*10/10=2mls
    H=8m/s
    V=2m/s

    thats how i got my answer collect me if am worng

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