Box A has a mass of 12.0 kg, box B has a mass of 13.0 kg and there is an applied force of 28 N What is the acceleration of each box? Ignore friction. (Input your answer with 1 decimal place, do not include units) Fa A B
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- (a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her mass on that knee? (b) During strenuous exercise, it is possible to exert forces to the joints that are easily 10 times greater than the weight being supported. What is the maximum force of friction under such conditions? The frictional forces in joints are relatively small in all circumstances except when the joints deteriorate, such as from injury or arthritis. Increased frictional forces can cause further damage and pam.Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks, as shown below. The coefficient of kinetic friction between the blocks and the surface is 0.25. If each block has an acceleration of 2.0m/s2to the right, what is the magnitude Fof the applied force?a person is trying to judge whether a picture (mass =2.59kg) is properly positioned by temporarily pressing it against a wall. the pressing force is perpendicular to the wall. the coefficient of static friction between the picture and the wall is 0.650. What is the minimum amount of pressiong force that must be used? answe is 39N
- M Alt Alt LATITUDE E6430 Name: Directions: All problems must be solved using the problem-solving method, givens, unknowns, equation, cubstitution, and solve with correct unit to receive full credit. Also, all force problems require an FBD. P.4D-Practice-Force of Friction 1. A 38 kg crate rests on a floor. A horizontal pulling force of just more than 170 N is needed to start thecrate moving. What is the coefficient of static friction between the crate and the floor?Three cables are used to hold a hot-air balloon in place. The tension in the cable AD is 658 N. What is the tension in the cable AB? Enter using 3 significant figures. What is the tension in the cable AC? Enter using 3 significant figures. What is the vertical force V exerted by the balloon at point A? Enter using 4 significant figures.can you pls answer a-e. a is not in the pic but reads: if mass is 85kg. and the applied force is 95N at 27degrees above the horizontal. what is the coefficient of kinetic friction? here’s b-e. thank u!!!!
- A 392-N force parallel to the plane is required to support a body on an inclined plane of height 300 m and base 400 m. If the force exerted by the plane on theb body is 780N, a. what is the weight of the body? b. what is the frictional force between the body and the plane?The coefficient of static friction between A and C and between B and D is g = 0.25, and between A and B is g = 0.46. Neglect the weight of each wedge. (Figure 1) Figure Part A Pmin = 19 Value 15° Units Determine the smallest force P needed to lift the 3000-lb load. Express your answer to three significant figures and include the appropriate units. A ? 3000 lb B D 1 of 1M Kg Fa? a wis Calculate the Force required to keep a box of mass 28 from sliding down a ramp at angle 61 degrees. The coefficient of static friction is 0.33. Answer to 3 sig figs.
- e.co CU ct sona- n ect Pool artment... W 24,919 8. A mass m₁ = 9.00 kg is connected by a light string that passes over a pulley of mass M = 14.0 kg to a mass m₂ = 12.5 kg sliding on a horizontal frictionless surface (see figure). There is no slippage between the string and the pulley. What is the magnitude of the tension that is acting on mass m₂? (The moment of inertia of the pulley is ½/Mr².) N # 3 20 $ 4 R 999 F4 % 5 FS ^ 6 tv © MacBook Air Y & 7 m₂ F7 * 8 Dall 1 ( 9 M m₁ A 02 DD ) 0 P ISULI H by mi 04 M vauies or roe pufferIn the following figure m = 20.0 kg and a622 The coetticient of kinetic friction betwoen the biock and the incline is a -0.40 (Eigure 1) Part A What must be the mass my of the hanging block ifit ia to descend 14.5 m in the tinst 3.00 s after the system is neleaned from rest? Express your anewer with the appropriate units. Figure t of 1 my Value Units Submit Bequest Aner Provide Feedback Next>A 247N crate resting on a plane inclined 25-degrees with the horizontal requires a 28N force to bring it down to 7.1m from its initial position. The force is applied 67-degrees with respect to the horizontal. Neglecting friction between the crate and plane, determine the time (in seconds) that the crate had travelled a distance of 7.1m. Answer in two decimal places. Numerical values only. Don't indicate units here, just on the submitted solution. You Answered 2.07 Correct Answer 1.69 margin of error +/- 0.01