83. In an amusement park, a car rolls in a track as shown below. Find the speed of the car at A, B, and C. Note that the work done by the rolling friction is zero since the displacement of the point at which the rolling friction acts on the tires is momentarily at rest and therefore has a zero displacement.

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Chapter6: Applications Of Newton's Laws
Section: Chapter Questions
Problem 6.2CYU: Check Your Understanding Calculate the acceleration of the system, and the tension in the string,...
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Ch.8 Problem #83
interacting with a conservative
force is conserved. (Hint: Start by using Newton's third law
and the definition of work to find the work done on each
body by the conservative force.)
83. In an amusement park, a car rolls in a track as shown
below. Find the speed of the car at A, B, and C. Note
that the work done by the rolling friction is zero since the
displacement of the point at which the rolling friction acts
on the tires is momentarily at rest and therefore has a zero
displacement.
Transcribed Image Text:interacting with a conservative force is conserved. (Hint: Start by using Newton's third law and the definition of work to find the work done on each body by the conservative force.) 83. In an amusement park, a car rolls in a track as shown below. Find the speed of the car at A, B, and C. Note that the work done by the rolling friction is zero since the displacement of the point at which the rolling friction acts on the tires is momentarily at rest and therefore has a zero displacement.
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izontal
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В
12 cm,
much
upport
ermine
en the
ermine
e of 20
50 m
40 m
A
20 m
spring
C
d on a
ctached
le. The
ssed by
84. A 200-g steel ball is tied to a 2.00-m “massless" string
:1:
Transcribed Image Text:odt assegmo yo spring tached v = 0o izontal block В 12 cm, much upport ermine en the ermine e of 20 50 m 40 m A 20 m spring C d on a ctached le. The ssed by 84. A 200-g steel ball is tied to a 2.00-m “massless" string :1:
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