1. The car moves in a straight line from position Ô to s = 6t2 + 5t m where t is in sec. Determine the velocity and acceleration when t= 5s. (10 MARKS) 2. The crate has a mass of 80kg and is being towed by a chain which is always directed at 20 from the horizontal as shown.
1. The car moves in a straight line from position Ô to s = 6t2 + 5t m where t is in sec. Determine the velocity and acceleration when t= 5s. (10 MARKS) 2. The crate has a mass of 80kg and is being towed by a chain which is always directed at 20 from the horizontal as shown.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter6: Power Flows
Section: Chapter Questions
Problem 6.26P
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![SECTION A
ANSWER ALL THE QUESTIONS IN THE SHEETS PROVIDED.
(20 MARKS)
1. The car moves in a straight line from position O to s 6t2 + 5t m where t is in sec.
Determine the velocity and acceleration when t= Ss.
a, v
(10 MARKS)
2. The crate has a mass of 80kg and is being towed by a chain which is always directed at 20°
from the horizontal as shown.
20
If the magnitude of P is increased untirthe crate begins to slide, determine the crate's
initial acceleration if the coefficient of static friction is u. = 0.5 and the coefficient of kinetic
friction is u, = 0.3. (Draw free-body diagram)
(10 MARKS)
*** END OF QUESTION PAPER ***](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7a5492c7-53c9-4cb5-bb88-b95c0a9046da%2F642d4855-027a-4295-b096-ec32fd577588%2Fcb19texv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:SECTION A
ANSWER ALL THE QUESTIONS IN THE SHEETS PROVIDED.
(20 MARKS)
1. The car moves in a straight line from position O to s 6t2 + 5t m where t is in sec.
Determine the velocity and acceleration when t= Ss.
a, v
(10 MARKS)
2. The crate has a mass of 80kg and is being towed by a chain which is always directed at 20°
from the horizontal as shown.
20
If the magnitude of P is increased untirthe crate begins to slide, determine the crate's
initial acceleration if the coefficient of static friction is u. = 0.5 and the coefficient of kinetic
friction is u, = 0.3. (Draw free-body diagram)
(10 MARKS)
*** END OF QUESTION PAPER ***
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