2. The figure shows a block of mass M= 12.0 kg on a horizontal surface. An external force of magnitude F = 65.0 N is applied to the block as shown. The coefficients of static and kinetic friction between the block and the surface are 0.600 and 0.200, respectively. The angle 0 equals 38.0°. Calculate the acceleration of the block. M Horizontal surface
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- The image below shows a box with an applied force. The static coefficient of friction between the box and surface is 1.2. 19 kg 400 N 20° (a) Determine the magnitude of the applied force along the x axis. (b) Determine the normal force as the force is applied. mumQuestion 11. A person is trying to judge whether a picture (mass positioned by temporarily pressing it against a wall. The pressing force is perpendicular to the wall. The coefficient of static friction between the picture and the wall is 0.650. What is the 2.59 kg) is properly minimum amount of pressing force that must be used? Ans: 39 N Question 12 A 1While moving in, a new homeowner is pushing a box across the floor at a constant velocity. The coefficient of kinetic friction between the box and the floor is 0.393. The pushing force is directed downward at an angle below the horizontal. When is greater than a certain value, it is not possible to move the box, no matter how large the pushing force is. Find that value of 0. Number i Units
- A 2.75 kg block is pulled across a flat, frictionless floor with a 5.11 N force directed 53.8° above horizontal. What is the total force acting on the block? total force (N) Enter2. A man moves a 170 kg piano with constant speed up a ramp inclined 15.0º above the horizontal. Considering that the coefficient of friction between the piano and the ramp is x = 0.15 and that the force applied by the man is parallel to the ramp, determine: a) The magnitude of the force applied to make the piano go down the ramp. b) In which direction the man should apply the force (Draw a drawing to indicate it)I need help on that
- 4. In the following figure, a box of m₂= 2.0 kg appears on an inclined plane with a coefficient of kinetic friction of 0.15 that makes an angle of 30 degrees. It is connected by a string of negligible mass to a box m₁= 0.5 kg lying on a horizontal friction surface with a coefficient of kinetic friction of 0.15. A force of 2.3 N to the right is applied to the box m₁. Determine: a. b. The acceleration of the boxes and the tension in the string. The value of the force applied so that the boxes move at a constant speed. 111 m₂2. Block A has a mass of 6.00 kg. Block B has a mass of 5.00 kg. The coefficients of friction between two blocks are us= 0.400 and uk = 0.200. The coefficients of friction between the blocks and the ramp are us=0.500 and μ = 0.300. The ramp is angled at 15.0° above the horizontal. 4 B The man pulls the blocks up the incline. What is the largest force he can pull with if he doesn't want the top block to slip?An 5.2 kg wooden block is held against a wall with force (Fx) = 9.8 N. The friction coefficient between the two surfaces (µ)=0.50. Determine the acceleration of the block if a upward force of 36.0 N is applied. Use positive for an upward acceleration and negative for a downward acceleration.
- 200 N **26. Two strings are pulling on a 50-kg block as shown. The block does not move. The coef ficient of static friction between the floor and the block is us = 0.6. 100 N 370 530 a) Find the magnitude of the normal force exerted by the floor on the block. b) Find the magnitude of the static friction force by the floor on the block. 50 kg1. A block of mass 3.00-kg is pushed against a wall by a force P that makes an angle of 50.00 with the horizontal as shown in the figure below. The coefficient of static friction between the block and the wall is 0.250. Determine the possible values for the magnitude of P that allow the block to remain stationary.2. A two body system is set up on an inclined surface with M = 5 kg and m = 4 kg. The angle is 25 degrees. And the static frictional coefficient is 0.25, and kinetic frictional coefficient is 0.20. i. Find the parallel and perpendicular components of the Mg. ii. Find the static frictional force and kinetic frictional force. iii. Determine which way the system will move, uphill or downhill. iv. Once it starts, find the tension T =? v. Once it starts, find the acceleration, a=?