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Yes, the only time this isn't true is in circular motion.

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Yes it is.

Q: The normal force is always opposite in direction to weight?

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Friction between two objects = C X N. where C is the coeffiecient of friction for the objects in question, and N is the 'Normal' force. The normal force is the force equal and opposite to the object's weight. Therefore, if you increase the object's weight, the friction force increases, and the amount of energy wasted increases.

The strength of the force in each direction between the earth and any mass is called the "weight" of the mass. The force is equal in both directions, which means that the weight of the mass on earth is the same as the earth's weight on the mass. The force acts along the line between the center of the earth and the center of the mass. The direction toward the center of the earth is customarily referred to as the 'down' direction, and toward the center of the mass as the 'up' direction.

Your weight pushing down on the chair is the action force. The reaction force is the force exerted by the chair that pushes up on your body

Not if it's potential energy. Only objects with kinetic energy have momentum.

Since the object is submerged, we know that the buoyant force is not sufficient to overcome the weight of the object, otherwise it would be floating rather than being submerged. Therefore, the buoyant force is equal to the weight of the displaced water, not the weight of the object itself.

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The word normal has several meanings. All the population under the normal curve is normal.Normal is used in geometry and physics to mean perpendicular to.Your weight depends upon your mass, and upon the force acting on it.W = M x F. The force of gravity is attractive.

The upward force acting on an object is the normal force. It is equal in magnitude, but opposite in direction to the object's weight.

In the opposite direction to the course of acceleration.

It happens when 1 force is having larger magnituge and the other is less in magnitude ........ and then the forces does not balance each other Take the example of weight and tension of a body connected by string . weight and tension are always opposite in the direction if the weight is suppose 12 newton and tension is 10 newton , then same thing will happen , they can't balance each other ...... as the strength of weight is more than tension

No, not always directly opposite. The normal force is always perpendicular to the surface. So for a flat ground it will be directly opposite gravity or Weight.If you had an object on a ramp the normal force would be a diagonal line that is perpendicular with the ramp.

It is named as buoyant force which always acts in the upward direction ie opposite to the weight of the body. So actual weight appears to be reduced. Hence apparent weight loss

Friction in the opposite direction to the direction of motion. Weight directly downwards. Reaction force directly upwards.

1. Weight of the object acting always downward which is due to gravitational pull 2. Buoyant force which acts always upward which equals to the weight of the displaced fluid. 3. As the objects starts moving within fluid then viscous dragging force comes into the scene and acts always opposite the direction of motion.

weight is the force gravity exerts on an object. Therefore, it means that the greater weight an object has, the greater force is needed to move it in the opposite direction.

It varies per individual. Almost always anorexics will have a noticeably less percent of body fat or weight from body fat that a "normal" or "average" weight person.

During motion in a vertical circle, the force of gravity (weight of the object) is in the same direction as the motion for half the time and in the opposite direction for the rest.For a body moving in a horizontal circle, gravity is acting orthogonally to the motion at all times.During motion in a vertical circle, the force of gravity (weight of the object) is in the same direction as the motion for half the time and in the opposite direction for the rest.For a body moving in a horizontal circle, gravity is acting orthogonally to the motion at all times.During motion in a vertical circle, the force of gravity (weight of the object) is in the same direction as the motion for half the time and in the opposite direction for the rest.For a body moving in a horizontal circle, gravity is acting orthogonally to the motion at all times.During motion in a vertical circle, the force of gravity (weight of the object) is in the same direction as the motion for half the time and in the opposite direction for the rest.For a body moving in a horizontal circle, gravity is acting orthogonally to the motion at all times.

Because of buoyancy ; something that acts in the opposite direction to the force of gravity to make the object feel lighter.