ECE 6E44 TEST BANK REVISION PACK.3. The position y of a particle moving along the y axis depends on the time t according to the
equation
y = at – bt2
. The dimensions of the quantities a and b are respectively:
A) L2
/T, L3
/T2
B) L/T2
, L2
/T
C) L/T, L/T2
D) L3
/T, T2
/L
E) none of...
,Import Settings:
Base Settings: Brownstone Default
Information Field: Difficulty
Information Field: Section
Highest Answer Letter: E
Multiple Keywords in Same Paragraph: No
Chapter: Chapter 2
Multiple Choice
1. A particle moves along the x axis from xi to x f . Of the following values of the initial and final
coordinates, which results in the displacement with the largest magnitude?
A) xi = 4m, x f = 6m
B) xi = –4m, x f = –8m
C) xi = –4m, x f = 2m
D) xi = 4m, x f = –2m
E) xi = –4m, x f = 4m
Ans: E
Difficulty: E
Section: 2-3
2. A particle moves along the x axis from xi to x f . Of the following values of the initial and final
coordiantes, which results in a negative displacement?
A) xi = 4m, x f = 6m
B) xi = –4m, x f = –8m
C) xi = –4m, x f = 2m
D) xi = –4m, x f = –2m
E) xi = –4m, x f = 4m
Ans: B
Difficulty: E
, Full file at http://testbankscafe.eu/Test-Bank-for-Fundamentals-of-Physics-Extended-9th-Edition-Halliday
Section: 2-3
3. The position y of a particle moving along the y axis depends on the time t according to the
equation
y = at – bt2. The dimensions of the quantities a and b are respectively:
A) L2/T, L3/T2
B) L/T2, L2/T
C) L/T, L/T2
D) L3/T, T2/L
E) none of these
Ans: C
Difficulty: E
Section: 2-3
4. The average speed of a moving object during a given interval of time is always:
A) the magnitude of its average velocity over the interval
B) the distance covered during the time interval divided by the time interval
C) one-half its speed at the end of the interval
D) its acceleration multiplied by the time interval
E) one-half its acceleration multiplied by the time interval.
Ans: B
Difficulty: E
Section: 2-4
5. Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is
moving at 60 km/h and the other is moving at 40 km/h. In how many hours will they meet?
A) 2.5
B) 2.0
C) 1.75
D) 1.5
E) 1.25
Ans: D
Difficulty: E
, Full file at http://testbankscafe.eu/Test-Bank-for-Fundamentals-of-Physics-Extended-9th-Edition-Halliday
Section: 2-4
6. A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at
an average speed of 40 km/h. The average speed of the car for this 80 km trip is:
A) 40 km/h
B) 45 km/h
C) 48 km/h
D) 53 km/h
E) 80 km/h
Ans: D
Difficulty: M
Section: 2-4
7. A car starts from Hither, goes 50 km in a straight line to Yon, immediately turns around, and
returns to Hither. The time for this round trip is 2 hours. The magnitude of the average velocity
of the car for this round trip is:
A) 0
B) 50 km/hr
C) 100 km/hr
D) 200 km/hr
E) cannot be calculated without knowing the acceleration
Ans: A
Difficulty: E
Section: 2-4
8. A car starts from Hither, goes 50 km in a straight line to Yon, immediately turns around, and
returns to Hither. The time for this round trip is 2 hours. The average speed of the car for this
round trip is:
A) 0
B) 50 km/h
C) 100 km/h
D) 200 km/h
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller NURSE0050. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $2.50. You're not tied to anything after your purchase.