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- In the diagram shown, mass 1 (m1) is 18.79 kg and the coefficients of static and kinetic friction are 0.31 and 0.18, respectively. What is the maximum mass that mass 2 (m2) can have for the system to remain at rest? Assume that the pulley shown is ideal, massless, and frictionless. m2 = kgA person with a mass of 80kg while dressed in a jump suit jumps from a plane while parachuting.They eventually reach a terminal speed of 60m/s. If you assume g = 10ms2 , = 1:21 kg m3 , what is the value of the product of constants cdA?A block with a mass m is pushed up an inclined rough surface by a horizontal force F as shown. If the block is being pushed up at a constant speed, find the magnitude of the applied force F, given that theta =35 degrees , m = 5 kg, and the kinetic frictional coefficient between the block and the inclined surface mu_k = 0.2
- A skier is on a 25 degree slope and his mass is 80kg. If his constant velocity and the coefficient of kinetic friction between the ski and the snow is 9 m/s and 0.80, respectively, compute his velocity when he has skid 20m from his initial position and a drag force experienced by the skier equivalent to a magnitude of 0.6V^2.The figure shows an object of mass ?1 = 1.0 kg on an inclined frictionless surface. The angle of theinclined surface is ? = 25 with respect to the horizontal. The object of mass ?1 is connected by anideal string over an ideal pulley to a second object of mass ?2 = 2.05 kg on a horizontal frictionlesssurface below the overhang that is formed by the inclined surface. Furthermore, an external force ofmagnitude ???? = 10 N is exerted on the object with a mass ?1. We observe both objects accelerate. i. Draw separate free-body diagrams of all the forces acting on the two objects ii. Calculate the tension in the string connecting the two objects.Two masses mA =9.3kg and mB=6.1kg are on inclines and are connected together by a string as shown in the figure. The angles theta subscript A=700 and theta subscript B = 360 . In the absence of the friction, the force F is required to pull the masses at a constant velocity up the fixed inclines. The force F is now removed. What is the magnitude of the acceleration of the two blocks? Take g =9.81 m/s2, and express your answer using two decimal places.
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- A block weighing mA = 10 kg is placed on a plane with slope angle 30.0 degrees and is connected to a hanging weight of mass mB by a cord passing over a small frictionless pulley as shown in the picture. The coefficient of static friction is 0.42, and the coefficient of kinetic friction is 0.30. If the two blocks are moving, what is the force of friction?Compute the maximum velocity, maximum acceleration, and the maximum force.A force of magnitude 7.50 N pushes three boxes with masses m1=1.30kg ,m2=3.20kg, and m3=4.90kg. Find the magnitude of the contact force between boxes 1 and 2.