Here's why:

* Gravity is based on mass and distance: The gravitational force between two objects depends on their masses and the distance between their centers.

* Speed doesn't change mass: An object's speed doesn't alter its fundamental mass, which is the primary factor determining its gravitational pull.

However, there are a couple of important caveats:

1. Relativistic effects: At extremely high speeds, approaching the speed of light, Einstein's theory of relativity comes into play. These effects are not noticeable at everyday speeds.

* Time dilation: Moving clocks run slower than stationary clocks, and this can indirectly affect how gravity acts in the reference frame of the moving object.

* Mass-energy equivalence: Energy and mass are equivalent (E=mc²). As an object approaches the speed of light, its kinetic energy increases significantly, which can be interpreted as an increase in its relativistic mass. This *relativistic mass* would technically increase the object's gravitational pull. However, this effect is only relevant at speeds extremely close to the speed of light.

2. Gravitational lensing: While speed doesn't directly affect gravity, the path of light can be bent by gravity. This phenomenon, known as gravitational lensing, can be observed when massive objects like galaxies or black holes bend the light from objects behind them, distorting their appearance. However, this is more about the influence of gravity on light, not the speed of the object itself.

In conclusion: For everyday objects and speeds, we can consider gravity to be independent of speed. The main factors are the object's mass and its distance from other objects. The relativistic effects are only significant at speeds close to the speed of light, which are not relevant for most situations.