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Gravity force is always downward and it depends how you define the coordinate system. By convention down is negative, but that is only a general rule
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Is a positive plus a negative make a positive or a negative?
Positive + Negative = Negative Negative + Negative = Positive Positive + Positive = Positive Negative + Positive = Negative
What is negative shear and Positive shear in beams?
The difference between a positive shear and a negative shear is the direction the beam is distorted into. A force that tends to shear the left portion of the beam upward with respect to the right portion is said to produce a positive shearing force.
How is dividing integers similar to multiplying integers with the resulting sign?
The rules for the sign (positive or negative) of the result of a multiplication is the same as division. For multiplication: Positive * Positive --> Positive Positive * Negative --> Negative Negative * Positive --> Negative Negative * Negative --> Positive For division: Positive / Positive --> Positive Positive / Negative --> Negative Negative / Positive --> Negative Negative / Negative --> Positive
How are multiplying integers and dividing integers alike?
a negative x a negative= a positive, a positive x a positive= a positive, a negative x a positive= a negative, and a positive x a negative= a negative. Same thing with division. a negative divided by a negative= a positive, a positive divided by a positive= a positive, a negative divided by a positive= a negative, and a positive divided by a negative is a negative. U see?
What is negative seven in Parentheses to the second power?
positive 49 Because a negative times a negative is a positive. -7*-7=49. positive * positive = positive negative * negative= positive positive * negative = Negative
Why is gravitational potential always negative?
because gravity is a force that acts down on an object. In physics up is positive and down is negative
Which universal force can repel as well as attract?
The gravitational force is proportional to the product of the two masses involved. The product is always positive, since mass is always positive. The electrical force is proportional to the product of the two charges involved. The product can be positive or negative, since either charge can be positive or negative.
What is Mass and Charge?
Mass of a body is a positive quantity. The gravitational force between two masses is always attractive. Electric charge can be positive or negative or zero.
Why gravitationalforce is taken negative in projectile motion?
Gravitational force pulls downward. If you take the upward direction as positive, then any force that pulls downward will be negative. It is a matter of definitions; you can just as well define up as negative, and down as positive. It doesn't really matter much, one way or the other.
Can plasma have a negative charge?
Plasma can't have a net overall charge, either positive or negative. If it did, it would blow itself apart, because the electromagnetic force is many orders of magnitude greater than the gravitational force.
Is there a difference between positive and negative g force?
Positive g-force is down. Negative g-force is up.
The gravitational force is always attractive while the electric force is both attractive and repulsive. what accounts for this difference?
All mass has the same sign, while electric charge can be either positive or negative.
Why is going downstairs negative work?
As you walk down the stairs, you apply a force to keep yourself from falling down the stairs. The force is in the upward direction, but your movement is in the downward direction. If the force is in the opposite direction of motion, work done by the force is negative. Gravitational force, because it pulls down, does positive work.
A force is applied to the right is positive or negative?
It is positive
Do the planets and sun repel each other?
No, the gravitational force is always one of attraction, unlike electrical forces which can attract and repel depending on positive or negative charges.
Which charge has strong force of attraction?
Neither charge on its own has an attractive force. Opposite charges (positive-negative) will attract while like charges (negative-negative or positive-positive) will repel.
Why the gravitational force is a negative value?
Convention - movement that decreases the distance between bodies is deemed to be negative.
