A section of track for a roller coaster consists of two circular arcs AB and CD joined by a straight portion BC. The radius of AB is 27 m and the radius of CD is 72 m. The car and its occupants, of total mass 270-Kg reach point A with practically no velocity and then drop freely along the track. Ignore air resistance and rolling resistance

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A section of track for a roller coaster consists of two circular arcs AB and CD joined by a straight portion BC. The radius of AB is 27 m and
the radius of CD is 72 m. The car and its occupants, of total mass 270-Kg reach point A with practically no velocity and then drop freely along
the track. Ignore air resistance and rolling resistance
B
72 m
27 m 30
18 m
|D
velocity at B (m/s)
a. 13.47
b. 10.1
c. 8.42
d. 11.79
е. 3.37
normal reaction at B
velocity at D (m/s)
Transcribed Image Text:A section of track for a roller coaster consists of two circular arcs AB and CD joined by a straight portion BC. The radius of AB is 27 m and the radius of CD is 72 m. The car and its occupants, of total mass 270-Kg reach point A with practically no velocity and then drop freely along the track. Ignore air resistance and rolling resistance B 72 m 27 m 30 18 m |D velocity at B (m/s) a. 13.47 b. 10.1 c. 8.42 d. 11.79 е. 3.37 normal reaction at B velocity at D (m/s)
d. 11.79
е. 3.37
normal reaction at B
velocity at D (m/s)
a. 47.52
O b. 35.64
c. 29.7
d. 41.58
e. 11.88
normal reaction at D (N)
maximum velocity at A to loose contact at B
a. 15.1
b. 12.58
c. 10.06
d. 7.55
e. 5.03
Transcribed Image Text:d. 11.79 е. 3.37 normal reaction at B velocity at D (m/s) a. 47.52 O b. 35.64 c. 29.7 d. 41.58 e. 11.88 normal reaction at D (N) maximum velocity at A to loose contact at B a. 15.1 b. 12.58 c. 10.06 d. 7.55 e. 5.03
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