1. If no external impressed force acts on the system, the total momentum (G) of a system ........... a. increases b. decreases c. remains constant d. none of the these
1. If no external impressed force acts on the system, the total momentum (G) of a system ........... a. increases b. decreases c. remains constant d. none of the these
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
![Choose the correct answer of the following questions:
1. If no external impressed force acts on the system, the total momentum (G) of a system ...
c. remains constant
a. increases
b. decreases
d. none of the these
2. Which of the following cases momentum is conserved?
(1 M)
a. Perfectly elastic impact
d. Momentum is always conserved
c. Perfectly inelastic impact
b. plastic impact with 0<e<1
3. A Force of 180 N moves a body in 5 seconds along a straight line according to s = (t - 50t) m, where
s in meter and r in seconds, the mass of the moving particle is:
a. 20.25 kg
b. 15.25 kg
c. 10 kg
d. 6 kg
4. According to the principle of conservation of energy, under the action of . . force, the sum of
potential and kinetic energy of a particle remains constant.
a. dissipative force
b. conservative force
c. frictional force
d. non-conservative force
5. Work-energy principle to be useful in determining the change in the speed of a particle during a
given displacement.
a. True
b. False
6. If the collision is elastic, the kinetic energy before collision is always equal to the kinetic energy after
collision.
a. True
b. False
7. The coefficient of restitution e, between car A and car B is:
a. e = 0.8
b. e = 0.6
c. e = 0.4
d. e = 0
02 mis
Before impact
After impact
8. The linear impulse (I) of the force F= (3() N for t= 4 seconds is:
b. 20 N.m
a. 40 N.m
c. 16 N.m
d. 12 N.m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8482ec67-29a6-40e5-90c9-e8b2531d97fb%2Fb80bd83a-e48a-46f6-886a-a4a34591f870%2Fk6arsf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Choose the correct answer of the following questions:
1. If no external impressed force acts on the system, the total momentum (G) of a system ...
c. remains constant
a. increases
b. decreases
d. none of the these
2. Which of the following cases momentum is conserved?
(1 M)
a. Perfectly elastic impact
d. Momentum is always conserved
c. Perfectly inelastic impact
b. plastic impact with 0<e<1
3. A Force of 180 N moves a body in 5 seconds along a straight line according to s = (t - 50t) m, where
s in meter and r in seconds, the mass of the moving particle is:
a. 20.25 kg
b. 15.25 kg
c. 10 kg
d. 6 kg
4. According to the principle of conservation of energy, under the action of . . force, the sum of
potential and kinetic energy of a particle remains constant.
a. dissipative force
b. conservative force
c. frictional force
d. non-conservative force
5. Work-energy principle to be useful in determining the change in the speed of a particle during a
given displacement.
a. True
b. False
6. If the collision is elastic, the kinetic energy before collision is always equal to the kinetic energy after
collision.
a. True
b. False
7. The coefficient of restitution e, between car A and car B is:
a. e = 0.8
b. e = 0.6
c. e = 0.4
d. e = 0
02 mis
Before impact
After impact
8. The linear impulse (I) of the force F= (3() N for t= 4 seconds is:
b. 20 N.m
a. 40 N.m
c. 16 N.m
d. 12 N.m
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