Asked by Anonymous
A
boulder
rolls
off
a
cliff
that
is
20
m
above
the
surface
of
a
lake
with
an
initially
horizontal
speed
v0.
What
minimum
initial
speed
must
it
have
to
land
on
the
plain?
Hint:
it
must
just
avoid
striking
the
dam
which
is
100
m
away
from
the
base
of
the
cliff,
as
shown
in
the
Iigure.
Neglect
the
size
of
the
boulder
and
neglect
air
resistance
boulder
rolls
off
a
cliff
that
is
20
m
above
the
surface
of
a
lake
with
an
initially
horizontal
speed
v0.
What
minimum
initial
speed
must
it
have
to
land
on
the
plain?
Hint:
it
must
just
avoid
striking
the
dam
which
is
100
m
away
from
the
base
of
the
cliff,
as
shown
in
the
Iigure.
Neglect
the
size
of
the
boulder
and
neglect
air
resistance
Answers
Answered by
drwls
Hint:
vo *
(time
of
flight)
must
exceed
100 m.
There
is
no
ligure.
vo *
(time
of
flight)
must
exceed
100 m.
There
is
no
ligure.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.