Determine the force P need to cause motion to impend f applied to the block if the coefficient of static friction between the block and the floor is 0.20.
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Q: determine whether or not the block is at rest.
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- 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 0.410. (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 i Units (b) Number UnitsA 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.
- A 5.00-kg box is initially at rest on a level surface. The coefficient of static friction between the box and the surface is 0.400. Calculate the maximum force you can apply before the box starts to move, if the force is directed at an angle of 30 degrees from the horizontal, with the vertical component downward. Calculate the maximum force you can apply before the box starts to move, if the force is directed at an angle of 30 degrees from the horizontal, with the vertical component upward.A 0.85 kg block of wood is stationary on an incline that is15◦above horizontal. A force of 3.0 N is being applied toit 75◦below horizontal, directly into the incline (the force isperpendicular to the incline). What is the minimum coefficientof static friction required to keep the block stationary?A normal force of steel block is 50 N. The coefficient of kinetic friction is 0.5. Find the frictional force acting on the steel block.
- 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