A skydiver jumps out of a
plane and begins to
accelerate. His speed
increases to 20 m/s, then 30
m/s. His acceleration slows
until he reaches a constant
speed of 50 m/s. Which
statement accurately
describes his kinetic energy
while falling? (1 point)
His kinetic
energy was
positive at first,
but it decreased
to zero when he
stopped
accelerating.
His kinetic
energy increased
while his speed
increases, then it
became
constant.
His kinetic
energy increased
quickly at first,
then it increased
at a constant
rat
e as his speed increased.
His kinetic energy decreased as his speed increased, then remained constant once he reached a constant speed of 50 m/s.
His kinetic energy remained constant throughout the fall, regardless of changes in speed.