kveton (ajk643) – hw3 – morrison – (60620)
1
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16
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001
10.0 points
All angles are measured in a counterclockwise
direction from the positive
x
axis.
A hiker makes four straightline walks (
A
,
B
,
C
, and
D
) in random
directions and
lengths starting at position (41 km
,
41 km)
,
listed below and shown below in the plot.
A
25 km
at
313
◦
B
27 km
at
89
◦
C
12 km
at
56
◦
Select the vector diagram which best repre
sents this hike.
1.
A
B
C
Scale: 10 km =
2.
A
B
C
Scale: 10 km =
3.
A
B
C
Scale: 10 km =
4.
A
B
C
Scale: 10 km =
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kveton (ajk643) – hw3 – morrison – (60620)
2
5.
A
B
C
Scale: 10 km =
6.
A
B
C
Scale: 10 km =
002
(part 1 of 2) 10.0 points
A person standing at the edge of a seaside
cliff kicks a stone over the edge with a speed
of 14 m/s. The cliff is 36 m above the water’s
surface, as shown.
The acceleration of gravity is 9
.
81 m
/
s
2
.
14 m
/
s
36 m
Note:
Figure not drawn to scale
a) How long does it take for the stone to fall
to the water? Answer in units of s.
003
(part 2 of 2) 10.0 points
b) With what speed does the stone strike the
water? Answer in units of m
/
s.
004
10.0 points
A man can throw a ball a maximum horizontal
distance of 96
.
5 m.
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 Fall '08
 FISCHLER
 Physics, Force, Friction, Mass, fhand

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