PHYS 201 Midterm: PHYS 201 TAMU 201Fall 06 Exam 4
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No partial credit will be given. (5 pts) 1. A uniform bar with mass 50 kg and length 6. 0 m is attached to a wall br a frictionless hinge. The bar is held in a horizontal position by a light rope that is attached to the bar at a point 2. 0 m from the hinge and makes an angle of 37 with the bar. The vertical component of the force that the hinge exerts on the bar is (a) upward (b) downward (c) zero (6 pts) 2. A wheel of radius 0. 50 m starts from rest at t = 0 and then rotates with constant angular acceleration. A force f = 20 n is exerted on a 5. 0 m long bar as shown in the sketch. The bar makes an angle of 53. 1 with the horizontal. F (5 pts) 4 a block of mass m moves in simple harmonic motion of the end of a horizontal.
