A block of mass m B is being pulled up by a constant force Fp and is accelerating downwards (refer to the diagram and coordinate system below). Р X y
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- This problem pertains to the scenario depicted in the diagram below, where the masses of the blocks are mi = 9.50 kg and m2 = 7.50 kg , and the angle of the ramp is 0 = 27.5°. There is no friction between block 2 and the ramp, but there is friction between block 1 and the flat surface it rests on. When the system is set in motion, both blocks move to the right at a constant speed. What is the coefficient of kinetic friction between block 1 and the flat surface (uk)? Show all steps, including drawing free body diagrams and applying Newton's 2nd law to each block. Problem 4 %3D sliding at constant speed m1 sliding at m2 constant friction no speed friction here hereB In the figure, block A has a mass of 9.06 kg. It rests on a smooth (assume frictionless) horizontal table and is connected by a very light horizontal string over an ideal pulley to block B, which has a mass of 2.80 kg. When block B is gently released from rest, how long does it take block B to travel 76.7 cm? Report your answer in seconds.Two blocks connected by a rope of negligible mass are being dragged by a force at a 21° angle above horizontal (see figure below). Suppose F = 117.0 N, m, = 10.0 kg, m, = 26.0 kg, and the coefficient of kinetic friction between each block and the surface is 0.136. Use g=9.8 m/s?. T m2 (b) Determine the acceleration of the system. m/s2 (c) Determine the tension T in the rope. N
- The diagram shows overhead views of four situations in which forces act on a block that slides on a frictionless ice surface. In which situations would it be possible for the block to move along the floor with a constant velocity? (Assume the magnitudes of the forces can be adjusted slightly). I do not understand this at all. I know gravitational force is downwards, and frictional force is opposing the pushing force, but how do I solve this?Two blocks are connected by a massless rope. The rope passes over an ideal (frictionless and massless) pulley such that one with mass m1 = 14kg is on a horizontal table and the other block with mass m2 = 8.5kg hangs vertically. Both blocks experience gravity and the tension force T. use the coordinate system in the diagram 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 the -direction. Your answer should involve the tension T What is a1 ?An object of mass m is at rest on a smooth horizontal surface. It is pulled by a variable force F = kt, where t is the time. The force makes and angle a with the horizontal. a) find an expression for the speed of the object when it starts to lift-off the surface. b) find an expression for the distance travelled until it starts to lift-off the surface.
- A block with mass m1=8.8 kg rests on the surface of a horizontal table which has a coefficient of kinetic friction of uk= 0.58. A second block with a mass m2= 10.8 kg is connected to the first by an ideal police system such that the second block is hanging vertically. The second block is released emotion occurs. Using a variable T to represent tension, right expression for the sum of the forces in the Y direction. ∑Fy, for block 2. Using the variable T to represent tension, write an expression for the sum of the forces in the X direction,  ∑Fox, for block 1. Write an expression for the magnitude of the acceleration of block 2, a2, in terms of the acceleration of block 1, a1. (assume the cable connecting the masses is ideal.) Write an expression using the variables provided for the magnitude of the tension force, T. What is the tension, T in Newton’s? A 5.0 kg object has a set of three forces acting on it, as shown in the diagram. At t = 0, the object is located at the origin and is at rest. a) Use Newton’s second law to find the acceleration of the object. Give both the magnitude and the direction (relative to the +x axis). b) What is the velocity of the object at t = 7.50 seconds? Give both the magnitude and the direction (relative to the +x axis). c) How far is the object from the origin at t = 7.50 seconds?Three mass are arranged as shown. Mass A is 800 kg, Mass B is 400 kg, and Mass C is 600 kg. Draw a free body diagram for each mass. Find the net, vector force on each mass. A 8 m 90° В Mass A Mass B Mass C 12 m
- In the figure below, the coefficient of kinetic friction between the block and Inclined plane is 0.27 and angle 0 is 59°, What is the block's acceleration (magnitude and direction) assuming the following conditions? (a) It is sliding down the slope. m/s2 O down the slope O up the slope (b) It has been given an upward shove and is still sliding up the slope. m/s2 O down the slope O up the slopeA skater of mass m standing on ice throws a stone of mass M with speed v in a horizontal direction. Find the distance over which the skater will move in the opposite direction if the coefficient of kinetic friction between the skater and the ice is ?k . (Use any variable or symbol stated above along with the following as necessary: g.)Δx =