A hockey puck traveling at 30m/s on smooth ice is deflected by 01 = 30° from its original direction when it collides elastically with a second identical puck at rest. The second puck acquires a velocity at 02= 60° from the the original direction of the first puck (see Fig.1). - (a) Determine the speed of the two pucks after the collision. (b) Determine the initial kinetic energy of the system. (c) Determine the final kinetic energy of the system. (d) Based on your answers to parts (b) and (c), is the collision elastic or inelastic? Before collision Hockey pucks v₂=0 At rest Figure 1: 5,' After collision 7₂

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Chapter9: Linear Momentum And Collisions
Section: Chapter Questions
Problem 9.91AP: A 2.00-g particle moving at 8.00 m/s makes a perfectly elastic head-on collision with a resting...
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I’ve been looking at this problem for a long time and feel like I did it wrong, please help me out, I’ll also attach what I did so you can see if I did anything wrong…Thanks
9
a. Mivix + m² √₂+
mivi #tm2v2 x
[m³v₁ = mv²¹` cos (30) + mv 2 cos (56)
30= v1 cus (30) + va cos(60)
(30=0.866 vi +0. Sv₂²
fm
m V₁ x 1 mg Vy - m₁v₁y 1m₂ v₂ v
m₁v₁y = mivi yt mikiy
0= mivi sin (30) + mz vison (60)
m² v₁ (0.5) = m₂ v₂ (0.866)
0.SV. =0.866V₂
V₁ = 1,732 V₂
(0
30-0.866(1.732V₂] +0.5V/₁₂
30- 1.5V₂ +0.5V₂"
30=21₂
V2-15m/s
/b. Ki - Zmv²
= { m (301²
(900) m
-4505
D. Jinelastic
V=1.732681
-25,98
2
cil { mu₁² ² + {mv₂²²
my
C
+011 (23981² +6 011 (151²
(67466) + (225)
33231112.5
=449,6)
Transcribed Image Text:9 a. Mivix + m² √₂+ mivi #tm2v2 x [m³v₁ = mv²¹` cos (30) + mv 2 cos (56) 30= v1 cus (30) + va cos(60) (30=0.866 vi +0. Sv₂² fm m V₁ x 1 mg Vy - m₁v₁y 1m₂ v₂ v m₁v₁y = mivi yt mikiy 0= mivi sin (30) + mz vison (60) m² v₁ (0.5) = m₂ v₂ (0.866) 0.SV. =0.866V₂ V₁ = 1,732 V₂ (0 30-0.866(1.732V₂] +0.5V/₁₂ 30- 1.5V₂ +0.5V₂" 30=21₂ V2-15m/s /b. Ki - Zmv² = { m (301² (900) m -4505 D. Jinelastic V=1.732681 -25,98 2 cil { mu₁² ² + {mv₂²² my C +011 (23981² +6 011 (151² (67466) + (225) 33231112.5 =449,6)
+
P
A hockey puck traveling at 30m/s on smooth ice is deflected by 01 30° from its original
direction when it collides elastically with a second identical puck at rest. The second puck
acquires a velocity at 02 = 60° from the the original direction of the first puck (see Fig.1).
(a) Determine the speed of the two pucks after the collision.
(b) Determine the initial kinetic energy of the system.
(c) Determine the final kinetic energy of the system.
(d) Based on your answers to parts (b) and (c), the collision elastic or inelastic?
Type here to search
2
v₁
Before
collision
Hockey
pucks
y
v₂=0
x
At rest
Figure 1:
II
(DELL
F4
D
After
collision
V₂
Get H
Transcribed Image Text:+ P A hockey puck traveling at 30m/s on smooth ice is deflected by 01 30° from its original direction when it collides elastically with a second identical puck at rest. The second puck acquires a velocity at 02 = 60° from the the original direction of the first puck (see Fig.1). (a) Determine the speed of the two pucks after the collision. (b) Determine the initial kinetic energy of the system. (c) Determine the final kinetic energy of the system. (d) Based on your answers to parts (b) and (c), the collision elastic or inelastic? Type here to search 2 v₁ Before collision Hockey pucks y v₂=0 x At rest Figure 1: II (DELL F4 D After collision V₂ Get H
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