Question: Why Are Attractive Forces Negative?

What are the two main types of forces?

There are 2 types of forces, contact forces and act at a distance force.

Every day you are using forces.

Force is basically push and pull.

When you push and pull you are applying a force to an object..

What happens when two negative charges come together?

Opposite charges attract each other, while like charges repulse each other. This can be seen in the image below. When two negatively charged objects are brought near each other, a repulsive force is produced. When two positively charged objects are brought near each other, a similar repulsive force is produced.

Can weight be negative physics?

Weight is a vector quantity so it can be either positive or negative, with respect to reference it can be positive or negative.

Why does a negative sign indicate an attractive force?

2 Answers. The minus sign is to indicate that the force is attractive: if there was no minus sign, two masses would repel.

Is repulsion positive or negative?

According to Coulomb, the electric force for charges at rest has the following properties: Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges.

Which force is always negative in sign?

The acceleration due to gravity is ALWAYS negative. Any object affected only by gravity (a projectile or an object in free fall) has an acceleration of -9.81 m/s2, regardless of the direction. The acceleration is negative when going up because the speed is decreasing.

Can two bodies having like charges attract each other?

Solution : Yes, when the charge on one body (q1) is much greater than that on the other (q2) and they are close enough to each other so that force of attraction between q1 and induced charge on the other exceeds the force of repulsion between q1andq2.

Can the Force be negative?

Yes, force can be negative. It means that the force is going to the opposite direction. … A ‘negative’ force is one that is acting in the direction opposite to what you decide to be the positive direction (Usually, upward is +ve, downward is -ve).

What is negative work done with example?

Negative work: Negative work is performed if the displacement is opposite to the direction of the Force applied. Example: Work was done the gravity on a rocket going perpendicular upwards. Zero work: When force and displacement are perpendicular to each other, or when force or displacement is zero.

What does it mean if the force is negative?

A ‘negative’ force is one that is acting in the direction opposite to what you decide to be the positive direction (Usually, upward is +ve, downward is -ve). It can negative. it means that the force is going to the opposite direction.

Which forces are attractive?

Concept Connections: The Four Basic ForcesForceApproximate Relative StrengthsAttraction/RepulsionGravitational10−38attractive onlyElectromagnetic10–2attractive and repulsiveWeak nuclear10–13attractive and repulsiveStrong nuclear1attractive and repulsive

Is a negative force attractive?

Answers and Replies. In the usual radial coordinate system the positive r direction is outward. So a repulsive force is in the positive r direction and an attractive force is in the negative r direction .