The diagram shows a box suspended above the ground by a blue cable. The box is at rest and the mass of the box is shown in the diagram. Given this information, find the magnitude of the force that the cable exerts on the box. Assume the cable is massless. Use g -9.81 m/s². Give your answer in units of newtons to three significant figures. When inputting your answer in the box below, enter a numerical value only (without the unit's symbol or name). D m = 62.0 kg УА L
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- Two 45-kg crates are located on a horizontal ground. Force P is applied to the crate P as shown in the (Figure 1). The coefficient of static friction between each crate and the ground is μ = 0.31. Figure Part A P = Determine the maximum force P that can be applied without causing the crates to move. Express your answer to three significant figures and include the appropriate units. O HÅ B Value Units 30° ? 1 of 1Needs Complete typed solution with 100 % accuracy.I'm not sure how to start solving this problem.
- A 65 kg person running at 2.0 m/s jumps onto the skim board at right. The skim board is 50 cm wide and 120 cm long, with an area of 0.60 m². Part A Draw a sketch of this situation. Part B If the person jumps onto the board on sand with a coefficient of friction of f=0.50, what force will resist the forward movement of the board [N]? Recall the friction force is the normal force times the coefficient of friction. Part C Now assume the person jumps onto the board on a 0.50 cm film of fresh water at 30°C. Use Newton's law of viscosity to estimate the force resisting the forward movement of the board.Two blocks are connected by a massless rope. The rope passes over an ideal (frictionless and massless) pulley such that one block with mass m1 = 12.25 kg is on a horizontal table and the other block with mass m2 = 7.5 kg hangs vertically. Both blocks experience gravity and the tension force, T. Use the coordinate system specified in the diagram. a.) Assuming friction forces are negligible, write an expression, using only the variables provided, for the acceleration that the block of mass m1 experiences in the x-direction. Your answer should involve the tension, T. b.) Under the same assumptions, write an expression for the acceleration, a2, the block of mass m2 experiences in the y-direction. Your answer should be in terms of the tension, T and m2. c.) Carefully consider how the accelerations a1 and a2 are related. Solve for the magnitude of the acceleration, a1, of the block of mass m1, in meters per square second. d.)Find the magnitude of the tension in the rope, T, in newtons.The two trees in (Figure 1) are 7.1 m apart. A backpacker is trying to lift his 29-kg backpack out of the reach of bears. Part A Calculate the magnitude of the force F that he must exert downward to hold the backpack so that the rope sags at its midpoint by 1.3 m. Express your answer to two significant figures and include the appropriate units. F = Submit Part B for Part A for Part do for Part redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A Value F = Request Answer Calculate the magnitude of the force F that he must exert downward to hold the backpack so that the rope sags at its midpoint by 0.13 m. Express your answer to two significant figures and include the appropriate units. Units Value for Part B for Part B do for Part th redo for Part B resetor Part B keyboard shortcuts for Part B help for Part B Units
- Please answer the questions in red.This problem pertains to the diagram on the right. Two dock workers pull a 1500 kg boat. a) What is the sum of force A and force B? Give the x and y components, in units of Newtons. b) What is acceleration of the boat? Give the x and y components, in units of m/s2. c) What is the magnitude of the boat’s acceleration, in units of m/s2? d) What is the direction of the boat’s acceleration? Give your answer as an angle measured relative to the x axis.How would I draw the vectors for trial 1 and trial 2 on a graph?
- Question 26 Out of curiosity, a physics student checks the mass of their favorite chocolate bar, the Newton bar, and compares it to its biggest rival, the Hooke bar. The student notes that both bars should have the same mass since the values stamped on the wrappers by the manufacturers are the same, which are both 80.0 0.2 g. Using a digital scale in one of the physics labs, the student weighed 10 chocolate bars for each brand, and averaged the results for both and recorded the results in their notebook as: the Newton bar: (79.6 ± 0.2) g the Hooke bar: (79.7 ± 0.1) g Which of the following statements best describes the comparison between the two different chocolate bars masses, as well as the stamped value? O There is not enough information given to compare the two chocolate bars with each other, or the stamped value. There is not enough information given to compare the two chocolate bars with each other but they can be compared to the stamped value on the wrappers. ) The values for…A 1,040-N crate is being pushed across a level floor at a constant speed by a force F of 390 N at an angle of 20.0° below the horizontal, as shown in the figure a below. Two figures show a side view of a crate positioned upon a horizontal surface. Figure (a): An arrow pointing downward and to the right is labeled vector F and forms an angle of 20° below the horizontal as it approaches the upper left edge of the crate. Figure (b): An arrow pointing upward and to the right is labeled vector F and forms an angle of 20° above the horizontal as it extends from the upper right edge of the crate. (a) What is the coefficient of kinetic friction between the crate and the floor? (Enter your answer to at least three decimal places.)(b) If the 390-N force is instead pulling the block at an angle of 20.0° above the horizontal, as shown in the figure b, what will be the acceleration of the crate? Assume that the coefficient of friction is the same as that found in part (a).Create a slope, with the graph presented. What does the slope represent? How close is your slope to the expected value?