State Newton's Second Law of Motion in words
1 answer:
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Answer:
d) v1 = v2 = v3
Explanation:
This can be answered using conservation of energy. We calculate the mechanical energy E=K+U (sum of kinetic and gravitational potential energies) at the original and final points, and impose they are equal.
At the original point we have, for the three balls:
At the final point we have, for the three balls:
Since we have , and
is the same for all balls, then
is the same for all balls, which means that
, the final velocity, is the same for all balls.
<h2>Answer:</h2>
If you triple the charge, the electric potential is 3V.
<h2>Explanation:</h2>If you triple the charge, the electric potential is 3V. Put another way, the value of the electric potential at the same location is tripled if the strength of the charge is tripled.
<em>But why this is true?</em>
Well, the potential V due to a single point charge q is:
If the strength of the charge is tripled means that our new q1=3q, therefore:
So you can see that in fact if you triple the charge, the electric potential is 3V.