A meter stick with a mass of 0.63 kg is held perpendicular to a vertical wall by a cord of length d = 6.3 m attached to the end of the meter stick and also to the wall above the other end of the meter stick. (a) Determine the tension in the cord. N (b) Will the tension in the cord will be greater than, less than, or the same as that found in part (a) if the string is shortened? To clarify, when the string is shortened, the location where the string is attached to the wall is lowered so that the meter stick remains horizontal. greater than O less than the same asA uniform rod is attached to a wall by a hinge at its base. The rod has a mass of 8.0 kg, a length of 1.8 m, is at an angle of 310 above the horizontal, and is held in place by a horizontal cord attached to the other end of the rod and bolted to the wall above the base of the rod. (a) Determine the tension in the cord. N (b) Determine the horizontal and vertical components of the force exerted on the rod by the hinge. FH = FV = N Supporting Materials Physical ConstantsA phonograph record accelerates from rest to 45.0 rpm in 4.53 s. (a) What is its angular acceleration in rad/s2? 2.08 Consider the known variables to determine which rotational kinematic equation should be used here. rad/s (b) How many revolutions does it go through in the process? revangular displacement, 8= wot that we have, w. = 0 and x = 1.0397 and, t = 4.53 see ". 8 = 0 7 5 x( 1. 0397) x ( 4.53)" = 10. 668 Radian Now, 2 T radian means I Revolution : . I radian Rev 2 TT :. 10. 668 Radian = . 1X 10. 668 = 2 TT 1. Fo rev . The number of revolution = 1. 70 Rev