College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 192 N and is 3.1 m long. What is the tension in each rope when the 710–N worker stands 1.06 m from one end? Smaller tension? Larger tension?arrow_forwardThe upper leg muscle (quadriceps) exerts a force of FQ = 1140 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in the figure below. Find the magnitude in newtons and direction in degrees counter-clockwise from an axis directed to the left of the force exerted by the kneecap on the upper leg bone (the femur). magnitude ______ N direction _____ ° counter-clockwise from an axis directed to the leftarrow_forwardA manager walks d = 3.4 m along a uniform plank supported by the floor at one end and by a vertical rope at the other, as in the figure. Find the tension in the rope if the plank's mass and length are M = 11 kg and L = 6 m, the manager's mass is m = 56 kg, and the angle = 21°. LL T = d— 0 N m 1 Report your numerical answer below, assuming three significant figures. Remember to include a "-" as necessary. HP Search M LDCEarrow_forward
- Two blocks of mass m, = 10 kg and mg =5 kg are connected by a massless string that passes over a pulley as MA shown in the figure. The system is in static equilibrium. There is friction between m, and the inclined surface (30.4). Neglect the friction between the string and the pulley. Determine the static friction force in the system. 10 kg 5.0 kg 37 49.0 N 29.3 N 39.2 N 33.9 N O 9.98 Narrow_forwardIn the figure, point A is pin support and point B has a sliding support. Find the reaction forces at points A and B. 20 N 4 N/m 53° 2 N/m В 6 m 2 m 3 marrow_forwardTwo blocks are connected by a (massless) string that runs over a (massless, frictionless) pulley as shown. Assume there is no friction between block 1 and the surface of the incline. 40° 2 If m₁ = 3.9 kg and m₂ = 5.9 kg, what is the tension in the string? Express your answer in N, to at least one digit after the decimal point.arrow_forward
- A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 202 N and is 2.8 m long. What is the tension in each rope when the 706–N worker stands 1.20 m from one end? SMALLER TENSION= _______N LARGER TENSION= ________Narrow_forwardDetermine two force members first. Two blocks are each pin connected to a massless horizontal link. Determine the largest P before motion cocurs. Use 0.35 and 0.3 for the friction coefficients. 45° J c 4.5 kg 3 kg B 30°arrow_forwardDetermine two force members first. Two blocks are each pin connected to a massless horizontal link. Determine the largest P before motion cocurs. Use 0.35 and 0.3 for the friction coefficients. 45° J c 4.5 kg 3 kg B 30°arrow_forward
- A person whose mass is m = 104.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle a = 33.7° with the horizontal. What is the reading on the scale? reading: kgarrow_forwardFor the 22.0 kg sphere shown in the figure below, find the normal forces from each surface. Assume that all the surfaces are frictionless. R=40.0 cm 49.0% 27.0° Nright = Number N Njeft Number Narrow_forwardThe image below depicts the Apollo 16 Lunar Module (LM) on the moon's surface. The diagram to the right is a model of one of the four landing gear assemblies. Determine the force supported by members AB, AC, and AD under the assumption that the weight of the LM is uniformly distributed by all four landing gear assemblies. Use Mathematica or an online calculator such as the WolframAlpha 3 Equation System Solver to solve the 3 x 3 system of equations that you will end up with. Z NASA X A (2.5, 2.5, -2.2) m B (1.5, 1.5,0) m C(2, 1,-1.2) m D(1,2,-1.2) m B Darrow_forward
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