Recent content by tom23

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    How Fast Does Roller A Rotate?

    Another Physics question?? Homework Statement The cart shown below is pulled at a speed of 5 km/hr to the right. Determine the speed of the belt, and the rotational speed of roller A. Please see figure attached Homework Equations The Attempt at a Solution I got the speed of...
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    Physics Dynamics: Angular and Linear Motion of Machine Components

    Tey didnt give the distance, so i believe it is the same, so for linear velocit and accel at C, i got: V = 34.9 (30cm) = 1047 cm/s a = 17.5 (30cm) = 525 cm/s Does it look right? Thanlks for all your help above!
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    Physics Dynamics: Angular and Linear Motion of Machine Components

    So I got this until now, is it right? ang velocity = 250 rpm x 2 pi x (1/60) = 26.2 rad/s ang acceleration = change in ang velocity / chang in time = 26.2 rad/s / 2s = 13.1 rad/s^2 Thus at B: tangential Velocity at B = ang velocity*radius1 = 26.2*20 = 524 cm/s tangential...
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    Physics Dynamics: Angular and Linear Motion of Machine Components

    Homework Statement Gear ‘B’ on the machine shown below accelerates from rest to 250 rpm in 2 seconds. Determine the angular velocity and acceleration of A, and the linear acceleration and velocity of rack C. See image attached Homework Equations I don't know where i would start off...
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