Created by StemPy LabA particle moves in the x-y plane under a force , in newtons, with x and y in metres. It goes from the origin to the point (2, 4) in two different ways. Path 1: first along the x-axis to (2, 0), then straight up to (2, 4). Path 2: along the straight line . The work done by the force along the two paths is
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← A block of mass 5 kg rests on a rough incline that makes an angle of 37° with the horizontal (sin 37° = 0.6, cos 37° = 0.8). The coefficient of static friction between the block and the incline is 0.25, so on its own the block would slide down. A horizontal force F pushes the block towards the incline, as shown in the figure. Taking g = 10 m/s², the smallest value of F that keeps the block at rest is closest toA shell is fired from level ground at 100 m/s, at 45° above the horizontal. At the highest point of its path it explodes into two pieces of equal mass. Just after the explosion, one piece is at rest, and it falls straight down. Ignore air resistance and take g = 10 m/s². How far from the gun does the other piece land? →
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