Answer:
The height of the cliff is 28.57 m.
Explanation:
Given;
initial velocity of the rock, u = 12.6 m/s
time of motion, t = 1.45 s
The height of the cliff is given by;
h = ut + ¹/₂gt²
h = (12.6 x 1.45) + ¹/₂(9.8)(1.45)²
h = 18.27 + 10.30
h = 28.57 m
Therefore, the height of the cliff is 28.57 m.
The orbits of planets being elliptical was one of the planetary laws developed by Johannes Kepler.
Potential energy is defined as
here we have
mg = weight = 5 N
now for different heights we can say
U = mgh
so potential energy in all three shells will be different and increases with height
The Physical and Chemical Properties<span> are the characteristics of a substance, like Iron, which distinguishes it from any other substance. Most common substances, like Iron, exist as States of Matter as solids, liquids, gases and plasma.
I hope i answer your question. :)
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