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And it not only DOES; it works in no other way. Friction is a sneaky thing. You know how a thermos "knows" to keep the hot stuff hot and the cold stuff cold? Well, friction always knows in which direction you're trying to go and pushes against you!
Friction's direction is always against the direction work is being applied to.
Heat always moves from the warmer object to the colder object.
against motion For example, if I push a box to the left, kinetic friction is going to the left.
Because the speed of light is always constant; it doesn't change based on the movement of the source or detector or the direction in which it travels.
Friction is always against the direction of the movement.
And it not only DOES; it works in no other way. Friction is a sneaky thing. You know how a thermos "knows" to keep the hot stuff hot and the cold stuff cold? Well, friction always knows in which direction you're trying to go and pushes against you!
Friction's direction is always against the direction work is being applied to.
In geneal frictional force. If it rubs against a surface then it is known to be friction. If it drags the moving body then it is said to be viscous drag.
Friction's direction is always against the direction work is being applied to.
Friction acts in the opposite direction of the object's motion
water potential
attrition
opposing the motion
Jellyfish are known as zooplankton, or animal drifters, as their means of propulsion cannot fight the ocean currents. The jelly fish move with the current and are viewed as tilted in the direction of movement.
Heat always moves from the warmer object to the colder object.
The direction of the friction force is always opposed to the movement. If I push my desk to the north, the friction force will be to the south - and if I don't push hard enough, it won't budge.