please explaine the following two physisc graph, free body diagram and relationship and etc....

question 1

Two blocks of different masses are hanging on ropes that pass through a system of two massless, frictionless pulleys, as shown in the diagram. The red block connected to the floor through a spring.33 ++ Two airplanes y between the same two cities. The destination city is due north of the origination, and both planes experience the same west-to-east crosswind, but travel at different airspeeds. Analysis: 1. t3 UI This problem involves relative motion of two airplanes in two reference frames: the air (wind) and the Earth, and the airplanes. There are multiple relative velocities. that can be considered: the air relative to the earth= each airplane relative to the earth, and each airplane relative to the air. The air relative to the earth is moving east as given, so this velocity, Van- rel Earth.- only.' has one component pointing East with a magnitude of the wind speed measured from the Earth's frame. The airplanes need to y north relative to die Earth since that's their destination. Therefore, tajrplane rel Earth: only one component pointing north. The magnitude of this velocityr is the speed of the airplane measured from le Earth's frame. The pilot of the airplane controls the velocity of the plane relative to the wind. This velocity, liair'plane rel air is determined by the direction the pilot navigates the plane and the speed at which the pilot sets. In order to travel due north, both planes need to angle their headings so that the east-west component of their motions relative to the air cancel the west-east motion of the air. Bo'di airplanes must therefore have the same westward component of velocity relative to the air. With the same east-west components of velocity and one moving through the air faster than the other, the faster plane must also have a larger norm-south component of velocity, which means it will get to the destination sooner. It also means that it has a smaller angle west of north for its heading: 9510\7. The three velocities discussed are related by the relative motion equations in the following way: \"airplane rel Earth 2 \"airplane rel air + \"air rel Earth 8. From trigonometry, we have: \"air rel Earth and [an Hfast : \"air rel Earth \"slow rel Earth \"fast rel Earth 13'" IE'lslow : Combining the two results: \"in \"slow \"fast rel Earth tan \"fast \"slow rel Earth 9. The distance between the takeo and landing points [i.e., relative to the Earth) traveled by the planes is the same in both cases, so the flight times are related by: \"slow rel Earth 'slow = \"fast rel Earth i'fast And this can be combined with rubric item #7 to relate the are] times to the angles. pull Three blocks of identical mass are stacked upon each other. The middle block is pulled by a rope, such that the blocks do not slide relative to each other. The bottom block experiences friction with the surface as it slides. The coefficients of static friction between the blocks are all equal