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?
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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?
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- A 200N block is at rest on a 30 degree incline.The coefficient of friction between block and the incline is0.20 . Compute the value of a horizontal force P that cause motion to impend up the incline.A 3.0 kg block of wood sits on a horizontal wooden floor. The larges force that can be applied before it starts moving is 14.7 N. Once the block starts moving, you only need 8.8N to keep it moving. (a) What is the coefficient of static friction? (b) What is the force of friction acting on the block if you push with a force of 6.8N [E]? (c) Calculate the max static friction if you place a 2.1 kg on top of it (d) What is the kinetic coefficient of friction?A man exerts a horizontal force of 125 N on a crate with amass of 30.0 kg. (a) If the crate doesn’t move, what’s the magnitudeof the static friction force? (b) What is the minimumpossible value of the coefficient of static friction between thecrate and the floor?
- 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?A 100kg box is at rest on a 10◦ ramp and is being held up by the force of static friction. What is the minimum coefficient of static friction between the box and the ramp to make sure that the box doesn't slip?A heavy box of mass M is found at rest on an inclined loading ramp as indicated in the figure. The ramp is placed between the ground and the back of a pickup truck so that it is inclined at an angle 0 above the horizontal. The coefficients of kinetic and static friction between the wooden box and the aluminium ramp are µk and µ,, respectively. 1. Pushing up the box parallel to the ramp, what is the magnitude Fmin of the minimum force you need பmm in order to get the box to start to move towards the back of the truck? 2. If µk = 0.15 and µ, = 0.45, for which inclination of the ramp between 0° and 90°, will you have to push the hardest in order to get the box moving towards the back of the truck?
- Our 10kg mystery box rests on a horizontal floor. The coefficient of static friction is 0.40and the coefficient kinetic friction is 0.30. Determine tge force of friction, acting on the box if a horizontal applied force is exerted on it of magnitude: (a) 0, (b) 10N, (c) 20N (d) 38N, and (e) 40N.A 5.00 kg box is being pulled at constant speed up a 30o incline by a force of 45.0 N parallel to the incline. Determine the coefficient of kinetic friction between the box and the plane.A box of bananas weighing 40.0 N rests on a horizontal surface.The coefficient of static friction between the box and the surfaceis 0.40, and the coefficient of kinetic friction is 0.20. If no horizontal force is applied to the box and the box is at rest, how large is the friction force exerted on it?
- A person , sunbathing on a warm day, is lying horizontally onthe deck of a boat. Her mass is 59 kg, and the coefficient of staticfriction between the deck and her is 0.70. Assume that the person ismoving horizontally, and that the static frictional force is the onlyforce acting on her in this direction . (a) What is the magnitude of the static frictional force when the boat moves with a constant velocity of +8.0 m/s? (b) The boat speeds up with an acceleration of 1.6 m/s2 and she does not slip with respect to the deck . What is the magnitude of the static frictional force that acts on her? (c) What is the magnitude of the maximum acceleration the boat can have before she begins to slip relative to the deck ? If you have answered this please skip. Please put the correct formulas and process. thanksA person , sunbathing on a warm day, is lying horizontally onthe deck of a boat. Her mass is 59 kg, and the coefficient of staticfriction between the deck and her is 0.70. Assume that the person ismoving horizontally, and that the static frictional force is the onlyforce acting on her in this direction . (a) What is the magnitude of the static frictional force when the boat moves with a constant velocity of +8.0 m/s? (b) The boat speeds up with an acceleration of 1.6 m/s2 and she does not slip with respect to the deck . What is the magnitude of the static frictional force that acts on her? (c) What is the magnitude of the maximum acceleration the boat can have before she begins to slip relative to the deck ?There is a mass of 10 kg which is placed on an inclined plane making an angle of 30° with the horizontal. A force of 15 N is applied on the object along the incline in downward direction. Determine the value of net force acting on the block, (if coefficient of static friction is 4 = 0.8 and coefficient of kinetic friction is 14 =0.5), a b C d 3.9 N, upward along the incline 21.6 N, downward along the incline ΟΝ 98 N