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# 1) The problem runs along the vertical y axis. g = 9.81. Astone is dropped from the top of a building of height h. At aheight 10.21 m is the lower edge of a window ...

## Question

###### 1) The problem runs along the vertical y axis. g = 9.81. Astone is dropped from the top of a building of height h. At aheight 10.21 m is the lower edge of a window of height 2.021m . It takes the stone to travel the window in a time 0.04521s. Calculate the height h.2) The problem unfolds on the horizontal 'x' axis. A car Agoes at constant speed 51.8073 km/h and at t = 0 it is at18.0844 km. Car B is at rest at t = 0 at 10.7029 km. Calculate theminimum constant acceleration aB that B mus

1) The problem runs along the vertical y axis. g = 9.81. A stone is dropped from the top of a building of height h. At a height 10.21 m is the lower edge of a window of height 2.021 m . It takes the stone to travel the window in a time 0.04521 s. Calculate the height h. 2) The problem unfolds on the horizontal 'x' axis. A car A goes at constant speed 51.8073 km/h and at t = 0 it is at 18.0844 km. Car B is at rest at t = 0 at 10.7029 km. Calculate the minimum constant acceleration aB that B must have to reach A before it reaches the position 28.8404 km. 3) g = 9.81. The problem unfolds on a plane. The theme is second law of Newton. A block of mass a= 0.122 kg hangs on a rope "c12" that passes through a pulley fixed to the left corner of a horizontal table without friction. Said rope turns the pulley to the right and joins a mass b= 0.526 kg from which comes another rope "c23" to the right that turns into a pulley and goes down joining a mass c= 0.285 that hangs from it. The pulleys have no mass. Find the acceleration a2 of mass b, with the convention of positive if it is to the right, and the tensions of chord c12 and tension of chord c23. 4) Angles in degrees and g = 9.81. The problem unfolds on a plane. A block of mass a= 0.122 kg hangs from a rope "c12" that passes through a pulley fixed to the left corner of a horizontal friction table. This rope turns the pulley to the right and is attached to a mass b= 0.2116952 kg. The pulleys have no mass. The coefficient of kinetic friction between mass b and the plane is 0.226. The mass a falls with acceleration a1. Find the acceleration a1 of mass a, with the convention of positive if downward, and the tension t12 of the chord c12. #### Similar Solved Questions

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