There is no single answer, unless you are working with givens that you haven't shared in the question. One person could move such a mass under a few situations. If the mass is in the shape of a wheel with a smoothe surface and it is placed in a curved seating and lubricated with oil at high pressure, a person could turn it in place. If the weight is on a flat surface on a cart with perfect wheels and perfect bearings, a person could lean into the object and move it. The task would be downright easy in outer space, if the person were between the [stationary] mass and a much larger space vessel. The object would offer resistance in keeping with its inertia, but very little effort would get the object to move. Unless you've planned ahead, getting it back might be a problem.
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It would take effort equivalent to the force exerted by a single individual to push one metric ton. The number of people needed depends on how the weight is distributed and the friction present.
If you push a car hard it'll go faster and if you push a car softer it will go slower
kiss my butt
No, the combined force of all 1.5 billion people jumping simultaneously would not be enough to throw the Earth out of its orbit. The Earth is massive compared to the collective force of all those people, and their jumping would not have a significant impact on the Earth's orbit.
The force required to push a 5-gallon bucket underwater would depend on the buoyancy force exerted by the volume of water displaced by the bucket. This force would be equal to the weight of the water displaced, which can be calculated based on the density of water (about 62.4 pounds per cubic foot). Therefore, you would need a force greater than the buoyancy force to push the bucket underwater.
It would be easier to push rubber across the desk since rubber has more friction with the surface, providing better grip and stability compared to ice, which is slippery.