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2) Grandma is pushing her grocery cart (mass: 15 kg) for the length of the cereal...
9) Mike is pushing a grocery cart on a horizontal floor to the right by applying...
9) Mike is pushing a grocery cart on a horizontal floor to the right by applying a force Fapplied at an angle below the horizontal, there is a frictional force f acting on the cart, which free body diagram best represents the forces acting on the cart? A) FN B) C) EN D) FN F applied Fapplied i F applied applied , 10) The diagram below shows a sign being held in place by two cables fastened to the ceiling....
A uniform ladder of length L and mass 5 kg rests against a smooth, frictionless, vertical...
A uniform ladder of length L and mass 5 kg rests against a smooth, frictionless, vertical wall. The coefficient of static friction between the ladder and ground is 0.4. a.) Draw a force diagram indicating all the forces acting on the ladder and where they are applied. b.) Find the minimum angle,between the ladder and the ground at which the ladder will not slip.
A ladder of length 12.0 m with a mass of 40.0 kg leans against a smooth...
A ladder of length 12.0 m with a mass of 40.0 kg leans against a smooth wall. The ladder makes a 35.0o angle with the horizontal. Draw an adequate free body diagram of the ladder and determine the minimum coefficient of static friction between the ladder and the ground necessary to prevent the ladder from slipping.
A ladder of length 12.0 m with a mass of 40.0 kg leans against a smooth...
A ladder of length 12.0 m with a mass of 40.0 kg leans against a smooth wall. The ladder makes a 35.0 degree angle with the horizontal. Draw an adequate free body diagram of the ladder and determine the minimum coefficient of static friction between the ladder and the ground necessary to prevent the ladder from slipping.
Renee is on Spring Break and pulling her 21-kg suitcase through the airport at a constant...
Renee is on Spring Break and pulling her 21-kg suitcase through the airport at a constant speed of 0.47 m/s. She pulls on the strap with 120 N of force at an angle of 38° above the horizontal. Assume the ground to be flat, Draw a FBD showing the forces on the suitcase. Find the acceleration of the suitcase. Determine the normal force experienced by the suitcase. Determine the total resistive force (friction) experienced by the suitcase. Find the coefficient...
Question 4 8 pts A box of mass m = 7 kg is being pushed up...
Question 4 8 pts A box of mass m = 7 kg is being pushed up a ramp that is angled 15 degrees above horizontal. The pushing force P = 49 N. The coefficient of kinetic friction is 0.215. At a certain time the velocity of the box moving up the ramp is 1.0 m/s. How far will the box been pushed during the next 3.0 seconds assuming the same pushing force is applied? In your solution you must show:...
Circular motion, vertical surface with kinetic friction: A small block of mass 2.0 kg slides on...
Circular motion, vertical surface with kinetic friction: A small block of mass 2.0 kg slides on a horizontal frictionless surface as it travels around the inside of a hoop of radius R 0.50 m. A view from above is shown. The coefficient of friction between the block and the hoop wall is 0.20. Therefore, the block is slowing down. a) Draw a free body diagram for the block in the position shown (you do not need to include forces perpendicular...
Question 5 P 0.8 m A rigid uniform square block of mass m = 60 kg...
Question 5 P 0.8 m A rigid uniform square block of mass m = 60 kg is resting on the ground as shown above. A force P is applied to the block at 0.8 m above the ground. The coefficient of kinetic friction between the ground and the block is given by uk = 0.2. It can be shown that the free-body diagram for the situation above is as given below, where F is the friction, N is the normal...
Figure Qla shows a safety trap for trucks (not to scale) that has been installed on a very steep slope to prevent runaway trucks from crashing. It consists of a rough run- off lane of length 20m...
Figure Qla shows a safety trap for trucks (not to scale) that has been installed on a very steep slope to prevent runaway trucks from crashing. It consists of a rough run- off lane of length 20m (beginning at point A) and a buffer designed to stop the vehicle. The buffer can be modelled as a spring of spring constant 750 kN/m and natural length 4m, compressed to 1m using cables. The run-off lane provides an effective coefficient of kinetic...
For the following problem, show all work. Circle your answers. A box of mass m =...
For the following problem, show all work. Circle your answers. A box of mass m = 5.0 kg is sitting on a ramp, which is elevated at an angle 0 = 20°, compressing a spring Ar = 0.5 m. The spring is released, causing the box to slide up the ramp. At some point, the spring becomes detached from the box. The total length of the ramp is L = 4.0 m and it has a coefficient of kinetic friction...
9) Mike is pushing a grocery cart on a horizontal floor to the right by applying a force Fapplied at an angle below the horizontal, there is a frictional force f acting on the cart, which free body diagram best represents the forces acting on the cart? A) FN B) C) EN D) FN F applied Fapplied i F applied applied , 10) The diagram below shows a sign being held in place by two cables fastened to the ceiling....
Question 4 8 pts A box of mass m = 7 kg is being pushed up a ramp that is angled 15 degrees above horizontal. The pushing force P = 49 N. The coefficient of kinetic friction is 0.215. At a certain time the velocity of the box moving up the ramp is 1.0 m/s. How far will the box been pushed during the next 3.0 seconds assuming the same pushing force is applied? In your solution you must show:...
Circular motion, vertical surface with kinetic friction: A small block of mass 2.0 kg slides on a horizontal frictionless surface as it travels around the inside of a hoop of radius R 0.50 m. A view from above is shown. The coefficient of friction between the block and the hoop wall is 0.20. Therefore, the block is slowing down. a) Draw a free body diagram for the block in the position shown (you do not need to include forces perpendicular...
Question 5 P 0.8 m A rigid uniform square block of mass m = 60 kg is resting on the ground as shown above. A force P is applied to the block at 0.8 m above the ground. The coefficient of kinetic friction between the ground and the block is given by uk = 0.2. It can be shown that the free-body diagram for the situation above is as given below, where F is the friction, N is the normal...
Figure Qla shows a safety trap for trucks (not to scale) that has been installed on a very steep slope to prevent runaway trucks from crashing. It consists of a rough run- off lane of length 20m (beginning at point A) and a buffer designed to stop the vehicle. The buffer can be modelled as a spring of spring constant 750 kN/m and natural length 4m, compressed to 1m using cables. The run-off lane provides an effective coefficient of kinetic...
For the following problem, show all work. Circle your answers. A box of mass m = 5.0 kg is sitting on a ramp, which is elevated at an angle 0 = 20°, compressing a spring Ar = 0.5 m. The spring is released, causing the box to slide up the ramp. At some point, the spring becomes detached from the box. The total length of the ramp is L = 4.0 m and it has a coefficient of kinetic friction...
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