lim (kl9356) – Homework 12 – Weathers – (17104)
1
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printout
should
have
12
questions.
Multiplechoice questions may continue on
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before answering.
001
(part 1 of 2) 10.0 points
m
1
1
m
2
before
after
v
v
v
2
v
m
1
m
2
3
4
α
β
An
m
2
= 1
.
4 kg can of soup is thrown
upward with a velocity of
v
2
= 5
.
9 m
/
s.
It
is immediately struck from the side by an
m
1
= 0
.
5 kg rock traveling at
v
1
= 8
.
8 m
/
s.
The rock ricochets off at an angle of
α
= 52
◦
with a velocity of
v
3
= 6
.
1 m
/
s.
What is the angle of the can’s motion after
the collision? Answer in units of
◦
.
002
(part 2 of 2) 10.0 points
With what speed does the can move immedi
ately after the collision?
Answer in units of
m
/
s.
003
10.0 points
Two ice skaters approach each other at right
angles.
Skater A has a mass of 75 kg and
travels in the +
x
direction at 2
.
58 m
/
s. Skater
B has a mass of 38
.
2 kg and is moving in the
+
y
direction at 1
.
68 m
/
s.
They collide and
cling together.
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 Fall '08
 Weathers
 Magnetism, Mass, Momentum, Work, m/s, 1.4 kg

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