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A 500N object is still on the horizontal ground, and the pressure on the ground is 0______ N. If the object is subjected to 100N vertical upward tension, the pressure on the ground is______ N. If the object is placed on an inclined plane, the pressure on the inclined plane will decrease______ 500N (fill in "greater than", "equal to" or "less than")
For an object resting on the horizontal ground, the pressure is equal to gravity, that is, the pressure is 500N; if it is subjected to 100N vertical upward tension, the force acting on the ground vertically is 500n-100n = 400N, so the pressure of the object on the ground is 400N; when the object is placed on the inclined plane, the pressure is less than the gravity. So the answer is: 500; 400; less than
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