The three diagrams below show a block of massm being pulled or pushed at constant acceleration a, along a table with a force P. The coefficient of kinetic friction is u. What is the friction force in each case? Give your answer in terms of the pushing force P, a, m, and the angle 0. phy Op (0) (i) (11) (iii) Syn (0 Rel case (I) =|| (0} Vec Trig case (I) Gre case ()
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- A block on the 30 degrees incline is acted upon by a force F inclined 20 degrees with the horizontal. If F is resolved into components parallel and perpendicular to incline and the value of perpendicular component is 1800 N, compute the value of the parallel component and that of F. Pls show the solution, formula, and free body diagram.What is the correct free body diagram for the system and what is the rank of the forces from largest to smallest?The sprinter from problem 9 is now out of the blocks and running. If the coefficient of static friction between the track shoe and the track is 0.80, and the sprinter exerts a vertical force of 2000 N downward on the track, what is the maximum horizontal force he can generate under his shoe?
- If the rocket sled shown in the previous problem starts with only one rocket burning, what is the magnitude of this acceleration? Assume that the mass of the system is 2.10103kg , the thrust Tis 2.40104N , and the force of friction opposing the motion is 650.0 N. (b) Why is the acceleration n one-fourth of what it is with all rockets burning?A push and a pull of magnitude F1=3.9 N and F2=5.8 N act on a block of weight 11 N resting and not moving on a rough surface as shown in the figure linked below. The push F1 is horizontal, while the pull F2 acts at angle θ=46 deg with the horizontal How large is the friction force exerted by the surface on the block?A contestant in a winter sporting event pushes an mm kg block of ice across a frozen lake by applying a force FF at an angle θθ below the horizontal as shown. Assume that the coefficient of static friction for ice on ice is 0.0300, and the coefficient of kinetic friction for the same is 0.0100. Let to the right be the positive x direction and up be the positive y direction for your equations. Obtain a numeric value, in newtons, for the magnitude of the maximum applied force, F, consistent with static friction when the force makes an angle 32° below the horizontal and the mass of the block is 63 kg. Obtain a numeric value for the acceleration, a, in meters per squared seconds, when the mass of the block is 63 kg and the angle of the rope is 32° below the horizontal.
- An elevator, complete with contents, has a mass of 2000.0 kg. For each of the two situations described in a) and b) below, do the following. - Draw a free-body diagram showing the correct relative lengths of the Tand the F vectors. - Determine the value of T (the tension in the elevator cable). - State the value of the real weight and the apparent weight in each case. • a. The elevator is moving up at a constant velocity of 2.0 m/s. • b. The elevator is moving up at a constant acceleration of 1.0 m/s squared?A contestant in a winter sporting event pulls an m kg block of ice across a frozen lake by applying a force F at an angle θ above the horizontal as shown. Assume that the coefficient of static friction for ice on ice is 0.0300, and the coefficient of kinetic friction for the same is 0.0100. Let to the right be the positive x direction and up be the positive y direction for your equations. Obtain a numeric value, in newtons, for the magnitude of the maximum applied force, F, consistent with static friction when the force makes an angle 22° above the horizontal and the mass of the block is 34 kg. Obtain a numeric value for the acceleration, a, in meters per squared seconds, when the mass of the block is 34 kg and the angle of the rope is 22° above the horizontal.Answer in full solution and with explaination 1. A book is pulled to the right at a constant velocity by a 10 N force acting 30° above the horizontal. The coefficient of kinetic friction between the book and the horizontal surface is 0.5. What is the weight of the book? What is the normal force?
- The diagram below shows a block of mass m=2.00kg on a frictionless horizontal surface, as seen from above. Three forces of magnitudes F1=4.00N, F2=6.00N, and F3=8.00N are applied to the block, initially at rest on the surface, at angles shown on the diagram. (Figure 1) In this problem, you will determine the resultant (total) force vector from the combination of the three individual force vectors. All angles should be measured counterclockwise from the positive x axis (i.e., all angles are positive). Part A) Calculate the magnitude of the total resultant force Fr= F1+F2+F3 acting on the mass. Part B) What angle does Fr make with the positive x axis? Part C) What is the magnitude and direction of the mass's acceleration vector, a ? Part D) How far (in meters) will the mass move in 5.0 s? Part E) What is the magnitude of the velocity vector of the block at t=5.0s? Part F) In what direction is the mass moving at time t=5.0s?A particle with a mass of 10 kg is moving at a velocity of (3t^2 + 4t)j m/s. What would be the expression for the external net force F(t) being applied to the particle? Note: i and j are unit vectorsTwo blocks, each of mass m = 2.1kg are pushed along the horizontal surface of a table by a horizontal force P of magnitude 7.1 N directed to the right, as shown in the figure below. The blocks move together to the right at constant velocity? Find the frictional force exertered on the lower block by the table ? Find the coefficient of kinetic friction between the surface of the block and the table? Find the frictional force acting on the upper block?