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- A push of magnitude P acts on a box of weight W as shown in the figure. The push is directed at an angle 0 below the horizontal, and the box remains a rest. The box rests on a horizontal surface that has some friction with the box. The normal force on the box due to the floor is equal to: O W + P cos 0. O W + P sin 0. OW-P sin 0. O W + P. O W. W 0 PQ.5. In figure (6), body A weighs 200N and body B weighs 400N. The coefficient of friction for all surfaces of contact is 0.4. Determine the force P 12 that will cause motion of body B to impend. A (25 %) Figure (6) Page 2 of 2Problem 6: Crates A and B have equal mass. Crate A is at rest on an incline that makes and angle of 0 = 24 degrees to horizontal, while crate B is at rest on a horizontal surface. A B.
- A 2.00-kg block is at rest on a horizontal plank that is 1.50 m long. When one end of the plane is raised to 0.50 m, the block starts sliding down. What is the coefficient of static/starting friction between the block and the plank? O 0.43 O 0.35 0.33 O 0.53A 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?From Fig. P-014, P is directed at an angle a from x-axis and the 200 N force is acting at a slope of 5 vertical to 12 horizontal. a. Find P and a if the resultant is 500 N to the right along the x-axis. b. Find P and a if the resultant is 500 N upward to the right with a slope of 3 horizontal to 4 vertical. c. Find P and a if the resultant is zero. 12 200 N Figure P-014
- Force vectors F1 and F2 act on body P with the resultant force vector R. The resultant force R = 350 N and the angle between R and the x-axis is of 35O. If F1 = 180 N and the angle between F1 and the x-axis is 72O, determine the magnitude of F2 and the angle between F2 and the x-axis.C A Force Of Constant Magnitude X Bb Chapter 8 - 202120:22987 C x Ner 7.2 HW - PHYS 1301 Spr x = 7.5 Nonconservative Forces - Col x A webassign.net/web/Student/Assignment-Responses/submit?dep325336738&tags=autosave#question3572590 5 A force of constant magnitude pushes a box up a vertical surface, as shown in the figure. The box moves at a constant speed. If the mass of the box is 3.4 kg, it is pushed 2.8 m vertically upward, the coefficient of friction is 0 determine the following. (a) the work done (in J) on the box by F 866 A force diagram will help you determine the magnitude of the force F acting on the box. Then you can determine the work done o (b) the work done (in J) on the box by the force of gravity (c) the work done (in J) on the box by the normal force (d) the increase in aravitational potential enerav (in J) of the system of the box and earth as the box moves up the wall P Type here to search FI prt sc F10 home F2 F3 F4 F5 F6 F7 F8 F9 F1a bridge across a small stream is made by supporting a 10m long log with a mass of 75kg with ropes tied at the ends of the log to the tree on the banks. the rope on the right makes a 25 degree angle with the ground. the rope on the left makes a 20 degree angle with the ground. a 25kg child us standing 7.5 m from the left bank. write the net force equation for the y direction. write the net force equation for the x direction. write the torque equation (use the left end of the log as the axis of rotation).
- A block of weight w is suspended from a rope tied to two other ropes at point O. One rope is horizontally attached to a wall and the other is fastened to the ceiling. The angle between ceiling and the rope is 60°. What are the tensions in each of the ropes? Assume the weights of the ropes and the knot are negligible. If the weight of the block is 100 N, what is the tension in the ceiling rope?Problem 6: In the two cases shown below, a person is standing on a scale in an elevator. The elevators are identical, and the person weighs 500 N. In Case A the elevator is moving upward at a constant speed, and in Case B the elevator is moving downward at a constant speed. A в y = 3 m/s v = 3 m/s Will the scale reading in Case A be greater than, less than, or the same as the scale reading in Case B? Explain with a calculation or in words.A wedge with mass M rests on a frictionless m horizontal tabletop. A block with mass m is placed on the wedge and a horizontal F force F is applied to the wedge. There M is no friction between the block and the wedge. For a = "/7, what must the magnitude of F be if the block is to remain at a constant height above the tabletop? (g is the magnitude of the gravitational acceleration. Take m = 1 kg, M = 5 kg and g = 10 m/s².) %3D (a) 29 N (b) 35 N (c) 44 N (d) 60 N (e) 104 N