If two masses 7 kg and 17 kg have velocities < 6, -10> and < -10, 3> respectively, find the final city of the 17 kg object. = 7(x) +17(4). 7 (6) + 17 (-10) -128 = 7 (x) + 177-8.518-0.412 1-26384 = 49x² + 2891-8.51.8 -0.412 x ²2 =) Find the final velocity of the 5 kg object if the collision is elastic. ½/22 (7) (6) ² + ½/2/2 (17) (-10) = //2² (7) (x ² ) + ½/₂2 (17) (4² = 3-√√ x² + 8.54²2 -724 V-8518-10 412 x 2 Write your answer as a speed and direction: |||| = ½ (9) (10) - 16354 = 49x² = 24 -13922.298= X = 13.741 (13.491, 3.125- (m/s) 0 = + ½/22 (17) (3) = ²/₂2 (7) (x²) + ½ 2₂2 ( 17 ) (Y²) -9.5 = 3.5 x ² + {₂.g2 --3.5x = 8.Sy ) If the collision is perfectly inelastic and the objects stick together, what is the final of the compound object? (degrees) 1. (-10) +17(3) = 76 197 = 7x- #17 (√+ 3-1-118-0.482 x ² ~ 351 = 49x² + 289(- kinetic energy 3(1=49x²² 323.1 +68 4.102=22-11720.068 x

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5
al
vy
#3. If two masses 7 kg and 17 kg have velocities < 6, -10> and < -10, 3> respectively, find the final
=
7(x)
velocity of the 17 kg object.
7 (6) + 17 (-10)"
+17(4)
-128 = 7 (x) +17√-8.518-0.4122
1-26 384 = 49x² + 2891-8.51.8 -0.412 x ²)
:
½/²2 ( 7 ) ( x ²) + 2/₂2 (17) (4²
= 3.5 x² + 8.54²
a) Find the final velocity of the 5 kg object if the collision is elastic.
½/22 (7) (6) ² + ½/22 (17) (-10)
2
-724
- 16384 = 49x3240
-13922.298=
X = 13.441
(13.491, 3.125>
√-8518-10-412x2
Write your answer as a speed and direction: |||| =
(m/s) 0 =
(degrees)
(9) (-10) + ½/₂2 (17) (3) = 1/2 (7) (x ² ) + ½/22 (17) (4²) 1 (-10) +17 (3) = 7(2
qd-3.5x = 8.Sy
1-118-0.482x².
147 € 7x- #176√-1.1
361 = 44x + 289(-1
b) If the collision is perfectly inelastic and the objects stick together, what is the final kinetic energy
of the compound object?
3(1=49x² + 323.10
-68 4.102 = -1₂0.068,
x = 3.125
Transcribed Image Text:5 al vy #3. If two masses 7 kg and 17 kg have velocities < 6, -10> and < -10, 3> respectively, find the final = 7(x) velocity of the 17 kg object. 7 (6) + 17 (-10)" +17(4) -128 = 7 (x) +17√-8.518-0.4122 1-26 384 = 49x² + 2891-8.51.8 -0.412 x ²) : ½/²2 ( 7 ) ( x ²) + 2/₂2 (17) (4² = 3.5 x² + 8.54² a) Find the final velocity of the 5 kg object if the collision is elastic. ½/22 (7) (6) ² + ½/22 (17) (-10) 2 -724 - 16384 = 49x3240 -13922.298= X = 13.441 (13.491, 3.125> √-8518-10-412x2 Write your answer as a speed and direction: |||| = (m/s) 0 = (degrees) (9) (-10) + ½/₂2 (17) (3) = 1/2 (7) (x ² ) + ½/22 (17) (4²) 1 (-10) +17 (3) = 7(2 qd-3.5x = 8.Sy 1-118-0.482x². 147 € 7x- #176√-1.1 361 = 44x + 289(-1 b) If the collision is perfectly inelastic and the objects stick together, what is the final kinetic energy of the compound object? 3(1=49x² + 323.10 -68 4.102 = -1₂0.068, x = 3.125
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