Two supports AB and CD are attached to a link BDE which has a mass of 5-kg. At the moment depictec in the figure, support AB has war = 6 rad/s clockwise and aAB = 0 rad/s². At that same instant, support CD has acp = 0 rad/s² · Find the horizontal component of the reaction a) at D, and b) at B. The moment of inertia for the supports and the link about their mass centers is given by the formula I =-ml?. 12

Can somebody help please ?

A sign for a pizza restaurant hangs from a 2.60-m long rod extended out from a building. A cable, attached to the building, is attached to the rod at a point that is 2.10 m from the hidge. (See the figure.)The mass of the rod is 6.50 kg. The mass of the sign is 9.40 kg. The angle between the building and the rod is 73.0 degrees. The angle between the cable and the horizontal is 30.0 degrees.What is the torque on the rod due to the weight of the sign alone? [Take the axis to be at the hinge.]

An Atwood’s machine consistsof blocks of masses m1 =10.0 kgand m2 = 20.0 kg attached by a cordrunning over a pulley as in FigureP8.46. The pulley is a solid cylinderwith mass M = 8.00 kg and radiusr = 0.200 m. The block of mass m2 isallowed to drop, and the cord turnsthe pulley without slipping. (a) Whymust the tension T2 be greater thanthe tension T1? (b) What is the accelerationof the system, assuming thepulley axis is frictionless? (c) Find thetensions T1 and T2.

A beam resting on two pivots has a length of L = 6.00 m and mass M = 79.0 kg. The pivot under the left end exerts a normal force n, on the beam, and the second pivot placed a distance l = 4.00 m from the left end exerts a normal force n,. A woman of mass m = 59.5 kg steps onto the left end of the beam and begins walking to the right as in the figure below. The goal is to find the woman's position when the beam begins to tip. M (a) Sketch a free-body diagram, labeling the gravitational and normal forces acting on the beam and placing the woman x meters to the right of the first pivot, which is the origin. (Submit a file with a maximum size of 1 MB.) Choose File No file chosen This answer has not been graded yet. (b) Where is the woman when the normal force n, is the greatest? X = (c) What is n, when the beam is about to tip? N (d) Use the force equation of equilibrium to find the value of n, when the beam is about to tip. N (e) Using the result of part (c) and the torque equilibrium…

A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. Suppose she produces an angular acceleration of 31 rad/s2 and her lower leg has a moment of inertia of 0.95 kg⋅m2 . - What is the force, in newtons, exerted by the muscle if its effective perpendicular lever arm is 1.95 cm?

A sign for a pizza restaurant hangs from a 2.60-m long rod extended out from a building. A cable, attached to the building, is attached to the rod at a point that is 2.10 m from the hidge. (See the figure.)The mass of the rod is 4.80 kg. The mass of the sign is 7.10 kg. The angle between the building and the rod is 50.0 degrees. The angle between the cable and the horizontal is 38.0 degrees. The tension in the cable is 90.27 N.What is the vertical component of the reaction force from then hinge on the rod?

of Sides a and b has a mass M. Four point-like balls, each of rnass m = each corner of the plate as indicated in the figure. What is the moment of inertia of this object if the axis of M are glued to rotation is through the end of one sidt, like a door, as indicated in the figure by the blue fine? (A) Isoor=M (a² + b²) (B) Isoor= M(a² + b) (C) Idoor M(a² + b*) (D) Isoor = }M(a²+8) (F) Isoor = Ma² %3D (G) Isoor Ma? %3D (H) Idor Ma² A rectangular plate with four umall point-like balls glued to each corner. The blue line represents the axis of rotation

The figure below shows an arm that is balancing a carton of milk in the hand. The mass of the carton of milk is 1.77 kg, and in the figure is the gravitational force on the carton. The biceps muscle applies a force Fg to the forearm directed up and to the right at an angle of 75.0° from vertical. The point where F is applied to the forearm is 8.00 cm to the left of the elbow joint and 25.0 cm to the right of the center of gravity of the milk carton. (For simplicity, ignore the weight of the forearm.) B Milk N -25.0 cm- What is the magnitude of FB (in N)? 75.0⁰ 8.00 cm i