Question

tion 9 of 15 > A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.955 rad/s. You, with a mass of 69.9 kg, walk clockwise around the platform along its edge at the speed of 1.21 m/s with respect to the platform. Your 21.1 kg poodle also walks clockwise around the platform, but along a circle at half the platform's radius and at half your linear speed with respect to the platform. Your 17.7 kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform's radius from the center. Model the platform as a uniform disk with mass 92.3 kg and radius 1.95 m. Calculate the total angular momentum of the system. total angular momentum: kg. m/s

Answer 1

Lplesfera = Iw ZMR? w = 4x (92-3)(1 958 (0.955) 2 V - "P, g = 167.6 kg-m/ For me : 0.955 X 1.95- 1.21 0.652 m/s Le = (mR /v = (69.9)(1-15) (0-652) 88.87 kg-m/ For poodle! = 0.955 X 1.95 - 1.21 0.326 m/s Lee (**) v = 21-18 1:24] (0.320) = 6.707 kg-m/s Les (17:1)(x1954(0.954 = 36.16 kg-m/ 167.6 + 88.87 +6.707 + 36.16 299 kg-m/s Answer For mutt L total -total