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![A block of mass m rests on a rough incline plane. Which of the following is the correct free-body diagram for this situation?
1 1
mg
mg](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2759baac-29a9-4fdd-ab81-a5790ab236cd%2Fb8322f16-e7bc-4e6d-84c9-3ec3bd6fa26e%2F7f3oe5t_processed.png&w=3840&q=75)
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- Give reasons for the answers to each of the following questions: (a) Clan a normal force be horizontal? (b) Can a normal force be directed vertically downward? (c) Consider a tennis ball in contact with a stationary floor and with nothing else. Can the normal force be different in magnitude from the gravitational force exerted on the ball? (d) Can the force exerted by the floor on the hall be different in magnitude from the force the ball exerts on the floor?Person A, is tired pulling Person B and his wagon . So, Person B lets Person A to sit on his wagon and takes Person’s A place in crossing a 25m-long bridge. Starting from rest, Person B pulls Person A and the sleigh with a 130-N force 30° above the horizontal against the ground's frictional force of 95N. 1. Draw an appropriate free body diagram to represent all the forces acting on Person A and the wagon. (Person A and the Wagon are considered as a single object/system.) What is the acceleration of Person A and the wagon if their combined mass is 400kg? How much work is done by Person B in crossing the bridge? What is the total work done by all the forces on Person A and the wagon over the distance of 25 m? What is the change in the kinetic energy of Person A and the Wagon after crossing the bridge?An object of mass m is being acted by the following 3 forces: F1 = 500 N @ 45⸰ North of East, F2 = 750 N @ 30⸰ West of North and F3 = 400 N @ 30⸰ South of West. Find mathematically the magnitude and direction of a fourth force F4 that will maintain the object at equilibrium. Ignore the weight of the object. Provide free body diagram for the system and the sum of the forces along the axis.
- The two blocks shown below have the mass of m1 = 4.0 kg and m2 = 1.0 kg. Determine the largest force P such that m2 will not slip on m1. The coefficients of static and kinetic friction between the contacting surfaces (m1-m2, and m1-ground) are µs = 0.5 and µk = 0.4, respectively. Hint: You should consider the free-body-diagram for each object.A car is moving at a high speed along a highway when the driver makes an emergency braking. The wheels become locked and the resulting skid marks are 32.0 meters long. If the coefficient of kinetic friction between tires and road is 0.550, and the acceleration was constant during breaking, how fast was the car going when the wheels became locked? Use a free body diagram to find your answer.Problem 2: After a lead-off single in the 8th inning, Earl makes an effort to steal second base. As he hits the dirt on his head first dive, his 73.2 kg body encounters 249 N of friction force. Construct a free body diagram depicting the types of forces acting upon Earl. Numbers Equation Form Substituted In Net Force Value Equilibrium? F,net = Fnet =
- A person pushes a sled with a constant horizontal 310 N force across a horizontal surface. The sled accelerates uniformly from rest to 4.62 m/s in 4.1 s. The coefficient of kinetic friction is 0.26. Determine the mass of the sled.Two blocks of masses M1=3.5 kg and M2=5.7 kg are at rest on a horizontal surface with a coefficient of friction uk = 0.12. You start them moving by pushing on block 1 with a force F1H = 33 N at an angel of theta = 42 degrees below the horizontal. Draw free body diagrams for M1 and M2 and label each force and what type of force it is, if known, which object causes the force and which object feels the force. Choose and label a coordinate system for your free body diagrams and apply N2L to the free body diagrams you have drawn in each direction. Determine the magnitude of the kinetic friction force on each block.a 49 kg rock climber is climbing a “chimney.” The coefficient of static friction between her shoes and the rock is 1.2; between her back and the rock is 0.80. She has reduced her push against the rock until her back and her shoes are on the verge of slipping. (a) Draw a free-body diagram of her. (b) What is the magnitude of her push against the rock? (c) What fraction of her weight is supported by the frictional force on her shoes?
- Assume m₁ = 10. kg and m₂ =4.0kg. The coefficient of static friction between m₁ and the horizontal surface is 0.50, and the coefficient of kinetic friction is 0.30. (a) Draw Free-body diagram for mass m1. Write Newton's 2nd law of motion and find an expression for the tension force in the string. (b) Draw Free-body diagram for mass m2. Write Newton's 2nd law of motion and find and expression for the tension force of mass m2. (c) Solve (a) and (b) and find a mathematical expression for the acceleration of the system. Find the numerical value of the acceleration? m1 m2A person pushes horizontally with a force of 221 N on a 55.0 kg crate to move it to the right across a level floor. The coefficient of kinetic friction is 0.350. What is the magnitude of (a) the frictional force and (b) the crate's acceleration? The directions of the four forces and the acceleration must be identified. Make a free-body diagram. Please use the blue vector to specify forces and the pink vector for acceleration. Please make sure to label each vectors. The labels should none, mg, fk, a, FN, or Fpushing.Block A (mass ma) rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass mg). The kinetic friction between Block A and the tabletop is f. The block are released from rest. Which of the followings is the correct Free Body Diagram of block B? mag mag mag mag B B B a a mal mg mg Fig. A Fig. B Fig. C Fig. D Fig. E Figure B Figure E Figure A Figure C Figure D
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