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Q: 3. Choose the best free body diagrams for the following situation. (Identify them with the letter on…
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A: D
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Q: B
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- Which of the following is true regarding the ground reaction force? Pick one answer A. Both B and CB. Band CC. Internal forces from muscles do not influence the ground reaction forceD. All of the aboveE. it is an external forceF. The resultant ground reaction force is directly proportional to frictiorG. A It is always equal to massio 9-Ex: Determine the horigental and vertical compenents of the pin reaction at Bof fiqure on member ABC. The 2000lb force is applied to a. rope which. passes over the smooth pully at A . Neglect the weights of all members. →2000 مقوتقمدگ SelitDetermine the weight of the crate W.
- Problem A sold uniform ball with mass mand dlameter dis supported against a vertical frictioniess wall by a thin massiess wire of length L. a) Find the tension in the wire. m Solution a) Let us first derive the expression for the tension. By Newton's First LN IF the componenes of force that makes this so is Simplifying this results to T- Analyaing the figure above, we arrive at 2. By substitution, we arrive at the following T- sarti if the ball has a mass of 45 kg and diameter 32 cm, while the wire has a length of 30 cm. The tension is equal to T- 0.370 NClick Submit to complete this assessment. Quèstion 7 The formula W=Fdcos0 describes done by a constant force. Click Submit to complete this assessment.A block has a mass of 20kg rest initially on a plare inclined at 30 deg. What value of force is required to stop the block from sliding if: A. The plane has a coefficient of friction of static and kinetic equal to 0.16 and o.13 respectively. B. What will be the value of the force if the velocity is constant and is directed upward parallel to the inclined?
- The system shown below is in equilibrium.a. Draw the free body diagram of the system. b. What is the maximum value that Fw can have if the friction force on the 40-N block cannot exceed 12.0 N? c. What is the coefficient of static friction between the block and the tabletop. Express the answers with the correct significant fugures and units.A construction worker pulls on a crate of mass, m, on level ground via a light, uniform cable that is attached to the crate at an angle, 0, above the horizontal. As a result of the force applied by the worker, the cable acquires a tension, T. What is the normal force of the ground on the crate? Neglect friction between the crate and the surface. (See the diagram below.) T Crate a. mg - Tsine b. mg + Tsine C. mg + Tcose d. mg O e. mg - Tcoseappropriate work Us ing Person B (seated in a chair with rollers) across the ucceleration of 2 m/sec. A has a mass of 50 kg. B win rope is pulling on B with a force of 180 N. What is of friction acting on B? (Draw a force diagran gnitude and the name of each force.) at is the magnitude and direction of the stati diagram showing the horizontal forces acti orce.)
- 2 strings hold a painting at a 45 degree angle with a force of 138.594N each. Calculate the total mass of the painting.remember f=ma. Hit use Fy for each string and add themA 392-N force parallel to the plane is required to support a body on an inclinedplane, of height 300 m and base 400 m. If the force exerted by the plane on thebody is 780N,a. what is the weight of the body?b. what is the frictional force between the3. A lead cube has a total mass of 50 kg. What is the length of the side? With sketch of multiple free body diagram, solution, and Given in the problem.