What force prevents an object from moving when pulled?
Friction
Does a heavier object move faster?
The force of gravity is the weight of the body. Hence an object with greater mass feels greater force than the other one. So even if the slope is same for both objects, a massive object moves faster through the slope than a less mass object.
Why does a photon not have infinite mass?
So, do photons have infinite mass because they travel at the speed of light? Since they never come to rest, it makes sense that they couldn’t be considered to have rest mass. This produces a consistent set of physical laws that agree with experiments, so photons have no relativistic mass and no inertial mass.
Does a photon have infinite energy?
The energy required to accelerate a massive particle to the speed of light is infinite, yes. Photons are massless, though, so they travel at the speed of light regardless of what amount of energy you put into them. Energy moves at the speed of light, and everything else is relative to that.
What would happen if an object has infinite mass?
When an object is moving at nearly the speed of light, the mass of the object will be tending to infinity. When the mass is infinity then the energy needed to accelerate or move it will also be infinity. Since we cannot provide energy more than infinity, no object will ever be able to exceed the speed of light.
Does a black hole have infinite mass?
A black hole has an infinite density; since its volume is zero, it is compressed to the very limit. So it also has infinite gravity, and sucks anything which is near it! So thus a black hole has mass which is finite and will always be finite.
What does it mean to have infinite mass?
It means that its inertia (resistance to change in the state of motion) approaches infinity. You probably already know from F=ma that for the same change in speed (acceleration), a larger mass requires a larger force. And as Georg says, whenever you see “becomes infinite”, read it as “approaches infinity”.
Is infinite speed possible?
Since speed is distance traveled over time taken it is not possible to have an infinite speed. The time taken in this case is zero. The equation becomes undefined at this point, which can also be interpreted as infinite.