The 1.0 kg block in (Figure 1) is tied to the wall with a rope. It sits on top of the 2.0 kg block. The lower block is pulled to the right with a tension force of 20 N. The coefficient of kinetic friction at both the lower and upper surfaces of the 2.0 kg block is μ = 0.39. For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Car on rolling board. ▼ What is the tension in the rope holding the 1.0 kg block to the wall? Express your answer with the appropriate units. 3.8 N Submit ✓ Correct Here we learn how to calculate the kinetic friction force. Part B Previous Answers What is the acceleration of the 2.0 kg block? Express your answer with the appropriate units. Value Units Y Incorrect: To Again ? Submit Previous Answers Request Answer

A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a rope to a rock of mass ma and makes his way over the ledge (see the figure). If the coefficient of maximum static friction between the rock and the ground is µ, and the mass of the hiker is mâ, what is the maximum mass of the friend, mc, that the rock can hold so the hikers can then make their way up over the ledge? Assume the rope is parallel to the ground and the point where the rope passes over the ledge is frictionless. mc = Ju

In the figure, two blocks are connected over a pulley. The mass of block A is 14.0 kg and the coefficient of kinetic friction between A and the incline is 0.360. Angle 8 of the incline is 31.0°. Block A slides down the incline at constant speed. What is the mass of block B? Frictionless, massless pulley Number i Units

In the figure, two blocks are connected over a pulley. The mass of block A is 8.10 kg and the coefficient of kinetic friction between A and the incline is 0.240. Angle 0 of the incline is 38.0°. Block A slides down the incline at constant speed. What is the mass of block B? Frictionless, massless pulley A B Number Units

In the figure, two blocks are connected over a pulley. The mass of block A is 6.50 kg and the coefficient of kinetic friction between A and the incline is 0.120. Angle 0 of the incline is 43.0°. Block A slides down the incline at constant speed. What is the mass of block B? Frictionless, massless pulley A B Number i Units

In (Figure 1), the man has a mass of 90 kg and the crate has a mass of 160 kg. The coefficient of static friction between his shoes and the ground is μ = 0.4 and between the crate and the ground is μ = 0.3. Figure t Part A Determine if the man is able to move the crate using the rope-and-pulley system shown. The man can move the crate. The man cannot move the crate. Submit ✓ Correct Part B F, Fmax = Previous Answers Prove your answer to part A by calculating the static frictional force F between the man's shoes and the ground required to move the crate and the maximum static frictional force Fmax which can be developed. Express your answers in newtons to three significant figures separated by a com_ma. 15| ΑΣΦ41 Submit Provide Feedback Request Answer vec Review N Next >

Two workers are sliding 390 kg crate across the floor. One worker pushes forward on the crate with a force of 440 N while the other pulls in the same direction with a force of 240 N using a rope connected to the crate. Both forces are horizontal, and the crate slides with a constant speed. What is the crate's coefficient of kinetic friction on the floor?

A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 12.5 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.

A block of mass m = 3.50 kg is pushed d = 3.00 m along a rough horizontal table by a constant applied force of magnitude F = 10.0 N directed at an angle 60 = 30.0° below the horizontal as shown in the figure below. Draw a free-body diagram that will enable you to solve the problem. Please include the horizontal and vertical components of applied force.

In the figure, two blocks are connected over a pulley. The mass of block A is 11.0 kg and the coefficient of kinetic friction between A and the incline is 0.250. Angle 0 of the incline is 44.0°. BlockA slides down the incline at constant speed. What is the mass of block B? Frictionless, massless pulley B Number Units