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The crate has a mass of 80 kg and is being towed by a chain which...
Question 8 III Not yet answered For an object moving in uniform circular motion, the direction...
Question 8 III Not yet answered For an object moving in uniform circular motion, the direction of the instantaneous acceleration vector is. Marked out of 2.00 Prag question Select one: O a directed radialy outward Ob tangent to the path of motion O c directed radially inward O d. equal to zero Question 9 Not yet answered Marted out of 3.00 Pag Question The crate has a mass of 80 kg and is being towed by a chain which is...
mi m2 Two wooden crates rest on top of one another. The smaller top crate has...
mi m2 Two wooden crates rest on top of one another. The smaller top crate has a mass of my = 24 kg and the larger bottom crate has a mass of m2 = 87 kg. There is NO friction between the crate and the floor, but the coefficient of static friction between the two crates is Hs = 0.82 and the coefficient of kinetic friction between the two crates is Mk = 0.64. A massless rope is attached to...
2. The crate has a mass of 100 kg and rests on the surface for which...
2. The crate has a mass of 100 kg and rests on the surface for which the coefficient of kinetic friction is 0.25 and the coefficient of static friction is 0.35. If the motor supplies an increasing cable force until the crate moves, and maintains this force magnitude afterwards. Determine (a) the initial acceleration of the crate, (d) the power output developed by the motor when t 2 seconds. The motor has an efficiency of 0.85.
A crate of 37.2-kg tools rests on a horizontal floor. You exert a gradually increasing horizontal...
A crate of 37.2-kg tools rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move when your force exceeds 322 N . After that you must reduce your push to 240 N to keep it moving at a steady 29.1 cm/s . A.What is the coefficient of static friction between the crate and the floor? B.What push must you exert to give it an acceleration of 1.11...
A spring is mounted horizontally. A crate, which has a mass of 8.5 kg is pressed...
A spring is mounted horizontally. A crate, which has a mass of 8.5 kg is pressed against the spring with a force of 350N As a result the spring is compressed a distance of 82.0 cm The mass is then released and is allowed to slide along the horizontal surface which has friction. The coefficient of kinetic friction between the crate and the surface is 0.65 How much work will be done on the crate by the frictional force from...
A. A crate of mass 66.8 kg rests on a level surface, with a coefficient of kinetic friction 1.49. You push on the crate with an applied force of 1,178. What is the magnitude of the crate's acceler...
A. A crate of mass 66.8 kg rests on a level surface, with a coefficient of kinetic friction 1.49. You push on the crate with an applied force of 1,178. What is the magnitude of the crate's acceleration as it slides? Part A answer: 3.0327 m/s^2 B. Take the same crate of mass 66.8 kg and the same coefficient of kinetic friction 1.49, but now place the crate on an inclined surface, slanted at some angle above the horizontal. Now...
The 75-kg man pushes on the 150-kg crate with a horizontal force F. The coefficients of...
The 75-kg man pushes on the 150-kg crate with a horizontal force F. The coefficients of static and kinetic friction between the crate and the surface are μs = 0.3 and μk = 0.1, and the coefficient of static friction between the man's shoes and the surface is μ′s = 0.8. What is the greatest acceleration the man can give the crate if the man's acceleration is zero at this instant? I keep getting 1.96 but it says answer is...
By pulling a on rope attached to a crate of mass 77.0 kg, the crate is...
By pulling a on rope attached to a crate of mass 77.0 kg, the crate is dragged across a floor. Let the coefficient of static friction between the crate and the floor be 0.830 and the angle between the rope and horizontal is 39.1 °. Find the minimum force required to move the crate. At a later time the crate is now dragged with this same force, and has already started moving, on a wet floor where the kinetic friction...
The 75-kg man pushes on the 150 kg crate with a horizontal force F The coefficients of static and kinetic friction...
The 75-kg man pushes on the 150 kg crate with a horizontal force F The coefficients of static and kinetic friction between the crate and the surface are us=0.3 and uk = 0.18, and the coefficient of static friction between the man's shoes and the surface is u's=0.8. (Figure 1) What is the greatest acceleration the man can give the crate if the man's acceleration is zero at this instant? (Ctri)
roblems lk at the end of the period Problem A 20-kg crate is pulled along a...
roblems lk at the end of the period Problem A 20-kg crate is pulled along a horizontal surface by a rope of tension 92 N at an angle of 60 to the 92N surface. The coefficient of kinetic friction between the crate and the surface is 0.25.Calculate (a) the magnitude of the normal force acting on the crate. 116N b) the magnitude of the kinetic friction force acting on the crate. 29 N c) the magnitude of the crate's acceleration...
Question 8 III Not yet answered For an object moving in uniform circular motion, the direction of the instantaneous acceleration vector is. Marked out of 2.00 Prag question Select one: O a directed radialy outward Ob tangent to the path of motion O c directed radially inward O d. equal to zero Question 9 Not yet answered Marted out of 3.00 Pag Question The crate has a mass of 80 kg and is being towed by a chain which is...
mi m2 Two wooden crates rest on top of one another. The smaller top crate has a mass of my = 24 kg and the larger bottom crate has a mass of m2 = 87 kg. There is NO friction between the crate and the floor, but the coefficient of static friction between the two crates is Hs = 0.82 and the coefficient of kinetic friction between the two crates is Mk = 0.64. A massless rope is attached to...
2. The crate has a mass of 100 kg and rests on the surface for which the coefficient of kinetic friction is 0.25 and the coefficient of static friction is 0.35. If the motor supplies an increasing cable force until the crate moves, and maintains this force magnitude afterwards. Determine (a) the initial acceleration of the crate, (d) the power output developed by the motor when t 2 seconds. The motor has an efficiency of 0.85.
The 75-kg man pushes on the 150 kg crate with a horizontal force F The coefficients of static and kinetic friction between the crate and the surface are us=0.3 and uk = 0.18, and the coefficient of static friction between the man's shoes and the surface is u's=0.8. (Figure 1) What is the greatest acceleration the man can give the crate if the man's acceleration is zero at this instant? (Ctri)
roblems lk at the end of the period Problem A 20-kg crate is pulled along a horizontal surface by a rope of tension 92 N at an angle of 60 to the 92N surface. The coefficient of kinetic friction between the crate and the surface is 0.25.Calculate (a) the magnitude of the normal force acting on the crate. 116N b) the magnitude of the kinetic friction force acting on the crate. 29 N c) the magnitude of the crate's acceleration...
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