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Module 1: Movimiento: Fuerza y aceleración

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Physics - Weight

Weight

Weight (W) is a force that acts on any object near the earth's surface at
all times - it is inescapable! More generally, it acts whenever an object
is in a gravitational field - a field that could be due to any massive
object such as a moon, planet, sun or asteroid.

It always acts towards the centre of the massive object - in our case this
is down, towards the centre of the earth. The weight of a mass (m) near any
other massive object (such as a planet) is given by the formula:

The weight [1] force does not depend on any other factors like speed or
direction of motion.

The weight force is considered to act from the centre of gravity [2] of
the object, which, for relatively small objects, is in the same position as
the centre of mass. [3] The weight vector always points down.

All objects have weight. The weight arrow is drawn with its origin at
the object's centre of mass.

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Links:
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[1] http://alison.com/#
[2] http://alison.com/#
[3] http://alison.com/#