007) wf = 0.10 rev/sec = 0.10 * 2 = 0.6283
rad/sec
wo = 0 (starts from rest)
t = 38.5 sec
so, using rotational kinematics
wf = t
= 0.016
rad/sec2
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008) outer radius of the reel when the reels have the same area
r = sqrt (472 + 142 / 2) = 34.67 mm
v = 203 / 1.8 * 3600
v = 0.031327 m/s
so,
w = v/r
w = 0.031327 / 34.67e-3
w = 0.90358 rad/sec
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009) v2 - u2 = 2ad
d = u2 / 2a
d = 418.18 m
so,
revolutions = 418.18 / 2*pi*0.45
revolutions = 147.9
revolutions = 147
007 10.0 points A potter's wheel moves from rest to an angu- lar speed of 0.10...
answer 7,8, and 9 :) pls
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007 10.0 points A potter's wheel moves from rest to an angu lar speed of 0.10 rev/s in 38.5 s Assuming constant angular acceleration, what is its angular acceleration in rad/s2? Answer in units of rad/s
007 10.0 points A potter's wheel moves from rest to an angu- lar speed of 0.20 rev/s in 20.7 s. Assuming constant angular acceleration, what is its angular acceleration in rad/s2? Answer in units of rad/s2.
007 10.0 points A potter's wheel moves from rest to an angu- lar speed of 0.10 rev/s in 26.9 s. Assuming constant angular acceleration, what is its angular acceleration in rad/s7 2 Answer in units of rad/s
008 10.0 points The tape in a videotape cassette has a tota length 190 m and can play for 2.5 h. As th tape starts to play, the full reel has an oute radius of 36 mm and an inner radius of 14 mm At some point during the play, both reels wi have the same angular speed. What is this common angular speed? Answer in units of rad/s.
The tape in a videotape cassette has a total length 295 m and can play for 2 h. As the tape starts to play, the full reel has an outer radius of 40 mm and an inner radius of 14 mm. At some point during the play, both reels will have the same angular speed. What is this common angular speed? Answer in units of rad/s.
The tape in a videotape cassette has a total length 241 m and can play for 2.1 h. As the tape starts to play, the full reel has an outer radius of 49 mm and an inner radius of 14 mm At some point during the play, both reels will have the same angular speed What is this common angular speed? Answer in units of rad/s.
A potter's wheel moves uniformly from rest
to an angular speed of 0.22 rev/s in 30.0 s.
A potter's wheel moves uniformly from rest to an angular speed of 0.22 rev/s in 30.0 s. (a) Find its angular acceleration in radians per second per second. rad/s2 (b) Would doubling the angular acceleration during the given period have doubled final angular speed? Yes No
001 10.0 points A car accelerates uniformly from rest and reaches a speed of 15.6 m/s in 4.5 s. The diameter of a tire is 35.6 cm. Find the number of revolutions the tire makes during this motion, assuming no slip- ping. Answer in units of rev. 002 10.0 points A figure skater begins spinning counterclock- wise at an angular speed of 4.2 π rad/s. Dur- ing a 4.6 s interval, she slowly pulls her arms inward and finally spins...
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