A 100 N box is initially at rest on a rough horizontal surface. The coefficient of...
A 10 N horizontal force is applied to a 50 N block initially at rest on a rough horizontal surface. If the coefficient of static friction is 0.5 and the coefficient of kinetic friction is 0.4, then the frictional force on the block is A : 10 N B : 20 N C : 25 N D : 0 N
#8-#9 Four identical 100 N boxes are initially at rest on a rough horizontal surface. In all cases, the coefficient of static friction between the box and the surface is 0.70 and the coefficient of kinetic friction is 0.25. Forces are applied as shown. 8. Circle the letter of the box (or boxes) subject to a frictional force of 25 N. A.C. P U 9. Circle the box(es) in equilibrium. A+B .70 25 N 50 N 12 Sa 100 N...
Question 26 (2.5 points) A 65.0 kg box is at rest on a rough horizontal surface. A man pushes horizontally on the box, first with a constant force of 500.0 N. After a time, the pushing force is increased, and then finally he stops pushing and loses contact with the box. What minimum coefficient of static friction is necessary to keep the box from moving during part A? Pushing
11. A BO N. horizontal force is applied on a 10 kg block along a rough horizontal surface. If the coefficient of static friction between the block and the surfaces is 0.40 and the coefficient of kinetic friction between the block and the surface hk is 0.3. What is the magnitude of the frictional force that acts on the block? A) 39 N B) 29 N C) 20 N D) 10 N E ) ON
A block is pulled along a rough horizontal surface by force of magnitude 100 Newtons, at an angle of 30 degrees as shown. The block has a mass M=20.0 kg, and the coefficient of kinetic friction between the block and the surface is 0.50. a)The horizontal component of the tension, T, is b)The normal force exerted upward by the floor on the block has a magnitude of c)If the block moves 10.0 m to the right, the work done by...
A block of mass M is pulled over a rough horizontal surface. The block has a coefficient of kinetic friction with the surface of . The block is subject to the normal force, the friction force, the force of gravity, and a force from a rope of magnitude T which pulls up and to the right at an angle of 0 with the horizontal. The box was initially travelling to the right at speed v = 2.7 m. If M...
A block of mass M is pulled over a rough horizontal surface. The block has a coefficient of kinetic friction with the surface of u. The block is subject to the normal force, the friction force, the force of gravity, and a force from a rope of magnitude T which pulls up and to the right at an angle of with the horizontal. The box was initially travelling to the right at speed u = 1.5". If M = 8.7kg,...
A block of mass M is pulled over a rough horizontal surface. The block has a coefficient of kinetic friction with the surface of u. The block is subject to the normal force, the friction force, the force of gravity, and a force from a rope of magnitude T which pulls up and to the right at an angle of 0 with the horizontal The box was initially travelling to the right at speed v 1.4 m. If M =8.5kg,...
A block of mass M is pulled over a rough horizontal surface. The block has a coefficient of kinetic friction with the surface of p. The block is subject to the normal force, the friction force, the force of gravity, and a force from a rope of magnitude T which pulls up and to the right at an angle of 0 with the horizontal. The box was initially travelling to the right at speed v = 1.3" If M =9.7kg,...
A 28.0-kg block is initially at rest on a horizontal surface. A horizontal force of 73.0 N is required to set the block in motion, after which a horizontal force of 55.0 N is required to keep the block moving with constant speed. (a) Find the coefficient of static friction between the block and the surface. (b) Find the coefficient of kinetic friction between the block and the surface.