9. A 2.00 kg object has a velocity of 2.00 m/s in the +x-direction. After the force shown below acts on the object, the object's new velocity equals F, (N) a) 1.67 m/s b) 2.50 m/s c) 2.33 m/s d) 3.17 m/s e) 4.20 m/s 2 t (s) -2 Impulse = area

9. A 2.00 kg object has a velocity of 2.00 m/s in the +x-direction. After the force shown below acts on the object, the object's new velocity equals F, (N) a) 1.67 m/s b) 2.50 m/s c) 2.33 m/s d) 3.17 m/s e) 4.20 m/s 2 t (s) -2 Impulse = area

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

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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Question

Please do question 9

8. A car and a truck collide. The momentum of the system of car and truck will be
a) conserved if the collision is elastic.
b) conserved if the collision is perfectly inelastic.
c) perfectly conserved if the net internal force >> net external force.
d) approximately conserved if FrC = FcT >> |f + D
%3D
9. A 2.00 kg object has a velocity of 2.00 m/s in the +x-direction. After the force shown below acts
on the object, the object's new velocity equals
F, (N)
a) 1.67 m/s
b) 2.50 m/s
c) 2.33 m/s
d) 3.17 m/s
e) 4.20 m/s
2
t (s)
-2
Impulse = area
under curve
10. Which one of the following objects is in static
equilibrium?
А.
В.
С.
D.
а) А
b) В
с) С
d) D
e) None of the objects are in static equilibrium.
11. Rank the momenta shown in the figure below from largest to smallest
20 g
20 g
a) 5>4 = 2 > 3 > 1
b) 1> 2> 3 > 4 > 5
c) 5>4> 3> 2 > 1
d) 1=2 >3 = 4 = 5
e) 2> 3 = 1 = 5 > 4
1
200 g
1 m/s
2 m/s
10 g
10 g
0.1 m/s
3
4
2 m/s
1 m/s

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