yes, weight plays a role in how fast an object can fall
It will fall just as fast as an object of any other mass - assuming that air resistance is negligible. That is to say, if an object has a lot of surface area, it will fall slower due to air resistance.
45.5 mph
if an object is lightr it will fall slower because gravity wont take it down as fast if it is heavier it will make the gravity pull it down faster
Depend on if you are talking a "free-fall" or an object descending the side of a mountain. Free-fall all objects regardless of weight fall at the same rate of speed (36 feet per second).
not necessarily, due to wind resistance and the surface area of said object the object will not always fall as fast. ex. a human sky diving. if they are in a pencil dive, they will fall a lot faster then if they are in a spread eagle position. but due to its mass it will sure as hell hurt a lot. so yes and no
You need the amount of time that it took to fall the 45m.
An object's top speed is called Terminal Velocity.The terminal velocity of an object can be calculated via a formula. See the related links.
very fast how fast can u fall
You can't fall in space, there is no gravity. An object will travel as fast as it is accelerated and continue at that speed forever as there is no air resistence to slow it down.
Such an object is said to be in "free fall".
Air pressure. For instance, in a complete vacuum, a feather would fall as fast as a lump of lead.