iPad 14% 3:08 PM webassign.net AP Physics 1 Ch 11.1 to 11.4 www3.nd.edu/~pregan3
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iPad 14% 3:08 PM webassign.net AP Physics 1 Ch 11.1 to 11.4 www3.nd.edu/~pregan3lduration %20... Bill To Abolish Department Of Educati Clock Pendulum Oscillates At A requ 100, 013 points l Previous Answers Giancoli7 11.P.034. My Notes Ask Your Teacher A clock pendulum oscillates at a frequency of 2.0 Hz. At t 0, it is released from rest starting at an angle of 11 to the vertical. Ignoring friction, what will be the position (angle) of the pendulum at the following times? (Hint: Do not confuse the angle of swing 0 of the pendulum with the angle that appears as the argument of the cosine.) (a) t 0.25 s 0.19 (b) t 1.60 s (c) t 500 s Submit Answer Save Progress Practice Another Version 11. o 1/2 points I Previous Answers Giancoli7 11.P.031 My Notes Ask Your Teacher Your grandfather clock's pendulum has a length of 0.9930 m. If the clock loses 20 seconds per day, should you increase or decrease the length of the pendulum? O Increase O decrease O Do neither, the clock cannot be fixed in this manner.Explanation / Answer
1] a) here period T = 1/f = 1/2= 0.5
at t=0.25 s, theta = - 11 degree
c) t= 500s, position will be same as t=0 as it is multiple of time period.
theta = 11 degree
b) t =1.60s, it will have same position at t=1.6-3*0.5=0.10s
it will be around theta = 8 degree
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