A 6.7 kg mass is released from rets while on an incline of 53.96 degrees. If the coefficient of kinetic friction is 0.478 what is the magnitude of the acceleration of the mass?
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A 6.7 kg mass is released from rets while on an incline of 53.96 degrees. If the coefficient of kinetic friction is 0.478 what is the magnitude of the acceleration of the mass?
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- A 5.00 kg box sits at rest at the bottom of a ramp that is 8.00 m long and is inclined at 30 degrees above the horizontal. The coefficent of kinetic friction between the box and the surface is 0.40, and coefficent of static friction is 0.43. What constant force F, applied parallel to the surface of the ramp, is required to push the box to the top of the ramp in a time of 6.00 seconds?You want to use a rope to pull a 12 kg box of books up a plane inclined 30 degrees above the horizontal. The coefficient of kinetic friction is 0.28.The rope pulls parallel to the incline. What force do you need to exert on the rope if you want to pull the box with a constant acceleration of 0.50 m/s squared yp the plane?A crate starts from rest and slides 8.05 m down a ramp. When it reaches the bottom it is traveling at a speed of 5.55 m/s. If the ramp makes an angle of 23.0o with the horizontal, what is the coefficient of friction between the crate and the ramp?
- a 2.5 kg mass is initially at rest on a horizontal surface. Am applied force acts in the + x direction resulting in a displacement of 1.50 m. If the speed of the mass is 4.00 m/s at the 150 m mark and the applied force is 22.0 N, what is the coefficient of kinetic friction?An object of mass 3 kg moves towards the negative x axis with a constant speed of 8 m/s and the coefficient of kinetic friction of the object with the ground is 0.39, so the value of the net force on the box is:An applied force of 43.9 N directed at an angle of -18.5 degrees with respect to the +x direction acts on a 2.98 kg mass that is initially at rest while on a horizontal surface. In moving a distance of 2.56 m in the +x direction, the object changes its kinetic energy by 34.8 J. What is the coefficient of kinetic friction?
- A block is placed on a wooden plank, which is initially horizontal. One end of the plank is slowly raised to make it more and more inclined, and for a while the block stays in place on the plank and doesn't slide due to static friction. Finally, when the plank reaches an incline of 56.3oabove horizontal, the block begins to slide. What is the coefficient of static friction between the block and the plank?You are trying to slide a sofa across a horizontal floor. The mass of the sofa is 2.0 x 102kg, and you need to exert a force of 3.5 x 102N to make it just begin to move. (a) Calculate the coefficient of static friction between the floor and the sofa.(b) After it starts moving, the sofa reaches a speed of 2.0 m/s after 5.0 s. Calculate the coefficient of kinetic friction between the sofa and the floor.A box with a mass of 8.80 kg slides up a ramp inclined at an angle of 28.3° with the horizontal. The initial speed is 1.70 m/s and the coefficient of kinetic friction between the block and the ramp is 0.46. Determine the distance (in m) the block slides before coming to rest. Answer in Meters.