Question 1
20 pts
one group approached their investigation by dropping a mass so it fell
vertically downward. they planned to measure the position of the mass
as it descended using a motion detector. they checked whether the
motion detector that they were using was sensitive enough to capture
the motion duri
uring the fall, and they were satisfied.
given that they are measuring the motion (position, velocity, and
acceleration) of the mass, the students can only measure gravitational
potential energy and kinetic energy; any other form of energy is
undetectable. if they hope to see that energy is conserved in this system,
which of the following assumptions must be true (or approximately
true)?