Answer :
The height of the cliff is 30 m.
How to find the height of the cliff?
Between distance/height, speed and time can be understood as follows.
The formula for distance/height is speed times time or written
s = (v) (t)
The formula for time is distance divided by speed or written
t = s ÷ v.
v is the symbol for speed (velocity),
s is the distance,
and t is the time.
The formula for speed is distance divided by time or written v = s ÷ t.
To determine the height of the cliff, use the equation:
S = (v) (t)
We have,
Speed of object thrown from the cliff = 10 m/s ⇒ (v)
The time it takes the object to hit the ground = 3 s ⇒ t
So, the height of the cliff is:
S = (10) (3)
= 30 m
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