Work-Energy Theorem applied to falling coin
Your school eg. MHS
Your Name, Surname and Grade
1) Comparing a heavy coin with a light piece of chalk and ignoring the negligible air resistance...
The heavy coin falls faster than the light chalk
the light chalk falls faster than the heavy coin
both fall together at the same velocity
from the information given we cannot tell how they would fall
2) The equations of motion...
None of them include m (mass)
some equations of motion contain m
3) Using the following formula and allowing a coin to fall for 1m, its velocity after falling 1 m (in m/s) is...
4) The following formula can also be written...
5) The Wnet done on a falling coin (projectile) is equal to...
change of displacement
change of velocity
6) The Work-Energy Theorem equation for a falling coin resolves into...
7) Because the Work-Energy Theorem for a falling object resolves into the following formula, the formula gives the same final velocity answer for any mass, because...
mass is negligible in the case of a coin
both sides of the equation have the same m which therefore cancels out
as the mass increases, so does the final velocity, and so the two cancel out
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