Question

Why is 11 C ? Please give detailed explanations

Thank you

11. Several students perform an experiment using a 0.150 kg endulum bob attached to a string and obtain the following data: Length of the string (m) Time for 50.0 vibrations (s) 1.40 1.20 1.00 0.90 0.70 0.50 119 110 99.9 95.0 83.9 70.9 They want to determine an experimental value for the acceleration due to the gravitational force in the classroom, using information from the slope of the line. To do this, they should plot the data using which of the graphs shown below? IV (A) I (B) 11 (C) 111 D) IV

Answer 1

"Time period of simple pendulum T = 2 pi squareroot L/g l = length of pendulum T = time period T^2 = 4 pi^2 l/g g = 4 pi^2 l/T^2 implies L = g/4 pi^2 middot T^2 from above equation . slope of L - T^2 graph gives value of ""g""/4 pi^2 where g = acceleration due to gravity hence we can calculate value of g it is not possible to find g with other graphs 1, 2, 4"