Asked by mymi
A carousel at a carnival has a diameter of 6.0 m. The ride starts from rest and accelerates at a constant angular acceleration to an angular speed of 0.7 rev/s in 8.8 s.
(a) What is the value of the angular acceleration?
1 0.499 rad/s^2
(b) What are the centripetal and angular accelerations of a seat on the carousel that is 2.40 m from the rotation axis?
ac =
á = 0.499 rad/s^2
I got angular accelaration correct but keep getting centripetal acceleration incorrect.....help!!
(a) What is the value of the angular acceleration?
1 0.499 rad/s^2
(b) What are the centripetal and angular accelerations of a seat on the carousel that is 2.40 m from the rotation axis?
ac =
á = 0.499 rad/s^2
I got angular accelaration correct but keep getting centripetal acceleration incorrect.....help!!
Answers
Answered by
Henry
Given: 0.7rev/s, t = 8.8s, Dia. = 6.0m.
C = pi*D = 3.14*6 = 18.84m.
V = 0.7rev/s * 6.28rad/rev = 4.4rad/s.
a. (Vf - Vo) / t,
a = (4.4 - 0) / 8.8 = 0.5rad/s^2.
C = pi*D = 3.14*6 = 18.84m.
V = 0.7rev/s * 6.28rad/rev = 4.4rad/s.
a. (Vf - Vo) / t,
a = (4.4 - 0) / 8.8 = 0.5rad/s^2.
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