Question

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

Answer 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

Answer 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

Answer 3

H:160m
t:T. ay:9.8
Uy : 0
H: uy*t+1/2ay*t*t
160=0*T+1/2 * 9.8*TT
160=1/2*9.8*TT
160*2/9.8=TT
√160/√4.9=T
4√10/7=T