Answer Happy

Rotation, Moment of Inertia In this lab, we will look at two blocks attached to the ends of a rope which is wrapped around a pulley. This arrangement is usually referred to as an "Atwood machine". As you can see, at some point in time the electric brakes inside the pulley support bracket are released and, subsequently, the pulley can rotate freely on an almost frictionless axle. The masses of the blocks are mR 11.00 kg (right) and m₁ = 10.00 kg (left). • Assume the rope is massless and does not stretch. • The diameter of the pulley wheel is 14.5 cm.

Assume the pulley has the shape of a uniform disk. Use your value of the acceleration to calculate the mass mp of the pulley. mp = kg

t 1 2888888888888 20 30 40 50 60 70 78 1 20 30 40 50 60 70 78 X 13 13 13 13 13 13 13 13 165 165 165 165 165 165 165 165 у color 378 magenta 393 magenta 417 magenta 455 magenta 504 magenta 566 magenta 649 magenta 703 magenta 376 yellow 360 yellow 336 yellow 300 yellow 250 yellow 187 yellow 103 yellow 52 yellow t(s) 0.01666667 0.33333333 0.5 0.66666667 0.83333333 1 1.16666667 1.3 0.01666667 0.33333333 0.5 0.66666667 0.83333333 1 1.16666667 1.3 x(cm) 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 13.2 13.2 13.2 13.2 13.2 13.2 13.2 13.2 1 pixel= 0.08 cm magenta = mL (left block) yellow = mR (right block) a1 = (36.53-6.45)/1.17 = 0.26 m/s^2 a2 = (-6.62-(-36))/1.17 = -0.25 m/s^2 magnitude of acceleration = sqrt(a1^2+a2^2) = 0.3607 m/s^2 = 36.07 cm/s^2 y(cm) 30.24 31.44 33.36 36.4 40.32 45.28 51.92 56.24 30.08 28.8 26.88 24 20 14.96 8.24 4.16 vx(m/s) vy(m/s) 0 6.45517241 0 0 0 0 0 36.5333333 ܘ ܘ ܘ ܘ ܘ ܘ 14.88 20.88 26.64 34.8 0 -6.6206897 -14.4 -20.64 -27.12 -35.28 -36