A cord passing over a pulley connects two masses, as shown, where m, = 4.30 kg and m, = 6.00 kg. The system accelerates with a magnitude of 0.64 m/s². The coefficient of kineti friction between the masses and the incline is the same for both masses. Assume the pulley is frictionless, and the cord is massless. (Due to the nature of this problem do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) m2 m, 35.0° 35.0° (a) What is the coefficient of kinetic friction? Draw free-body diagrams for both blocks and write Newton's second-law equations in the x and y-directions. Condense your four equations two by substituting, and solve the system of two equations for the two unknowns, Hy and T. (b) What is the tension (in N) in the cord?

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For a short period of time, the frictional driving force acting on the wheels of the 2.3-Mg van is FD = (600+2) N, where t is in seconds. (Figure 1) Figure FD 1 of 1 Part A If the van has a speed of 22 km/h when t= 0, determine its speed when t = 5 s. Express your answer to three significant figures and include the appropriate units. CHμA V = 3.32 Submit m Provide Feedback S ? Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining

A 20kg block is placed on a 30 degree ramp and an acceleration of 4.91m/s^2 is predicted if friction between the block and ramp is ignored. The actual measured acceleration is 3.49m/s^2. Find the Coefficient of friction between the block and the ramp.

There is a rough plane inclined at an angle θ to the horizontal where tan(θ)=12/5. Assume that μs = μk = 1.6. A rope applies a tension of 9 N to pull a 1.3 kg particle down the incline. What is theparticle’s acceleration? Use g=10m/s/s. (Side note: It will be helpful to draw the relevant free body diagram and to convert the decimal numbers to fractions.)

Objects with masses m₁ = 11.0 kg and m₂ = 6.0 kg are connected by a light string that passes over a frictionless pulley as in the figure below. If, when the system starts from rest, m₂ falls 1.00 m in 1.64 s, determine the coefficient of kinetic friction between m₁ and the table. 54.39 X Express the friction force in terms of the coefficient of kinetic friction. Obtain an expression for the acceleration in terms of the masses and the net force, including friction, and solve for the coefficient of kinetic friction. m1 m₂

A cord passing over a pulley connects two masses, as shown, where m, = 3.60 kg and m, = 7.10 kg. The system accelerates with a magnitude of 1.34 m/s?. The coefficient of kinetic friction between the masses and the incline is the same for both masses. Assume the pulley is frictionless, and the cord is massless. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) m2 m, 35.0° 35.0° (a) What is the coefficient of kinetic friction? (b) What is the tension (in N) in the cord?

A block of mass m = 5.6 kg is pulled up a θ = 24° incline as in the figure below with a force of magnitude F = 38 N. (a) Find the acceleration of the block if the incline is frictionless. (Give the magnitude of the acceleration.) (b) Find the acceleration of the block if the coefficient of kinetic friction between the block and incline is 0.11. (Give the magnitude of the acceleration.)

In the figure, a cord runs around two massless, frictionless pulleys. A canister with mass m = 41 kg hangs from one pulley, and you exert a force F on the free end of the cord. (a) What must be the magnitude of F if you are to lift the canister at a constant speed? (b) To lift the canister by 3.5 cm, how far must you pull the free end of the cord? During that lift, what is the work done on the canister by (c) your force (via the cord) and (d) the gravitational force? (Hint: When a cord loops around a pulley as shown, it pulls on the pulley with a net force that is twice the tension in the cord.) (a) Number i Units (b) Number i Units (c) Number Units (d) Number i Units

Current Attempt in Progress There are two forces on the 1.59 kg box in the overhead view of the figure but only one is shown. For F₁ = 18.4 N, a = 10.6 m/s², and 0 = 38.7°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative angle measured from the +x direction.) (a) Number i (b) Number i (c) Number i i+ i Units Units j Units