2.00 kg block is held in eguilibrium on an incline of angle e= 45° by a horizontal force F applied in the direction shown in the figure below. If the coefficient of static friction between block and incline is l = 0.300. letermine the following. (a) the minimum value of F (b) the normal force exerted by the incline on the block N
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We will draw free body diagram of the following problem and then we will apply Newton's second law in x and y direction,
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- A 375-lb block rests on a rough plane inclined 35o with the horizontal. If thecoefficients of friction between the block and the plane are 0.58 for static and 0.3 for kinetic respectively, determine whether or not the block is at rest.A crate of mass 17.0 kg rests on a level surface. If the coefficient of kinetic friction between the crate and surface is 0.440, calculate the following. edi ume (a) Calculate the normal force. (Give the magnitude.) (b) Calculate the magnitude of the kinetic friction force when a horizontal applied force of 91.0 N moves the crate. (c) Calculate the normal force when the 91.0-N applied force is exerted at an angle of 32.5 above the horizontal. (Give the magnitude.) (d) Calculate the magnitude of the kinetic friction force when the 91.0-N applied force is exerted at an angle of 32.5 above the horizontal.Two boxes are stacked as shown in the diagram below. The bottom box has a mass of 3.5 kg and the top box has amass of 1.5 kg. They are pushed up a ramp inclined at 15° by an applied force of 25 N, applied to the lower boxand directed parallel to the ramp. The coefficient of kinetic friction between the ramp and the bottom box is 0.12.Determine the minimum coefficient of static friction required to keep the top box in place on the bottom box.
- An initially stationary box of sand is to be pulled across a floor by means of a cable in which the tension should not exceed 876 N. The coefficient of static friction between the box and the floor is 0.360. (a) What should be the angle between the cable and the horizontal in order to pull the greatest possible amount of sand, and (b) what is the weight of the sand and box in that situation? (a) Number Enter your answer for part (a) in accordance to the question statement Units Choose the answer for part (a) from the menu in accordance to the question statement This answer has no units° (degrees)mkgsm/sm/s^2NJWN/mkg·m/s or N·sN/m^2 or Pakg/m^3gm/s^3times (b) Number Enter your answer for part (b) in accordance to the question statement Units Choose the answer for part (b) from the menu in accordance to the question statement This answer has no units°…A 22-kg crate is on an incline that makes an angle of 30° with the horizontal. If the coefficient of static friction is 0.50, the minimum force that can be applied parallel to the plane to hold the crate at rest is:What is the magnitude of the static friction force required to keep a 2.00 kg block resting on an inclined plane at an angle 25 degrees? If the angle was increased, such that the incline plane was steeper, would the magnitude of the static friction force required to hold the block at rest increase, decrease, or stay the same?
- A 1.5 kg block resting ina rough flat surface is pulled by a string. The string makes an angle of 20 degress with the horizontal. The coefficient of static friction between the blodk and the surface is 0.35. What is the maximum tension in the string to keep the block unmoved?A log is dragged along the ground at a constant speed by a force of 425 N at an angle of 45.08 above horizontal. Find the horizontal component of force exerted by the ground on the log