lie (el7352) – HW03 – markert – (56480)
1
This
printout
should
have
20
questions.
Multiplechoice questions may continue on
the next column or page – find all choices
before answering.
001
(part 1 of 2) 10.0 points
A superhero flies 135 m from the top of a
tall building at an angle of 30
◦
below the
horizontal.
What is the horizontal component of the
superhero’s displacement?
Draw the vectors
to scale on a graph to determine the answer.
Answer in units of
m. Your answer must
be within
±
5.0%
002
(part 2 of 2) 10.0 points
What is the vertical component of the super
hero’s displacement?
Answer in units of
m. Your answer must
be within
±
5.0%
003
(part 1 of 2) 10.0 points
A descent vehicle landing on the moon has
a vertical velocity toward the surface of the
moon of 37
.
5 m
/
s. At the same time, it has a
horizontal velocity of 51
.
6 m
/
s.
At what speed does the vehicle move along
its descent path?
Answer in units of m
/
s.
004
(part 2 of 2) 10.0 points
At what angle with the vertical is its path?
Answer in units of
◦
.
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 Fall '09
 IRENEPOLYCARPOU
 Physics, Force, 1 cm, 14 m/s, 17 m/s, 9.1 m/s, 51.6 m/s

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