0
Why can velocity be negative but nonzero speed is always positive?
Wiki User
∙ 6y ago
speed is a scalar quantity with magnitude only but no direction; velocity is a vector with both magnitude (speed) AND direction, which could be positive or negative
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
Can velocity speed up an object?
Well velocity is basically the same thing as speed but with direction (velocity can be negative or positive and speed is always positive). l velocity l = speed So a change in velocity means a change in speed.
Is the momentum of an object always positive?
Depending on how you define it. Momentum is always given positive units, but sometimes when considered in a relative view, it can be in a negative direction making the overall value negative too (while mass is always positive, velocity might be in a negative direction where e.g. two masses are moving in opposite directions).
Can the speed of the particle ever be negative if so give an example if not explian why?
see speed cannot de negative se speed = distance / time and neithr distance nor time can be negative they r always positive so speed cannot be negative but velocity can be negative
What is negative accleration?
Acceleration is change in velocity. It is a vector, so some direction is choosen as positive and the opposite direction as negative. Then you have two possibilities;(1) the object is increasing its speed in the negative direction. (2) the object is decreasing its speed in the positive direction. Both of these give negative acceleration. For example; if up is choosen as positive then acceleration due to gravity is always negative because when a projectile is projected up with some initial velocity it decreases its speed on the way up. But on the way down its increasing its speed, in the negative direction.
Can the velocity be positive or negative?
Yes, velocity can be negative. Velocity is a vector, which means that it specifies a speed and a direction. However, whether it's negative depends on how the coordinate system is defined. If the right hand side is defined as being positive, then an object traveling to the right has a velocityv.If that object begins traveling to the left, it has a velocity of -v.
Why is -x cube always negative for any nonzero value of x?
The premise of your question is false: -x³ is positive if x is negative.
Can a body have negative speedwhy?
No. The speed is the length of the velocity vector, and that is always zero or positive.
Can velocity speed up an object?
Well velocity is basically the same thing as speed but with direction (velocity can be negative or positive and speed is always positive). l velocity l = speed So a change in velocity means a change in speed.
The sum of zero and a negative integer is always sometimes or never zero?
The sum of zero and a negative integer can never be zero - it will always be negative and nonzero. Although zero is also an integer, it is neither negative nor positive and cannot be the other integer used.
Would a positive multiplied by a negative be a positive?
No. A positive times a negative is always negative. A negative times a negative is always a positive.
When dividing a positive number by a positive number the quotient is?
The answer is always positive. If the signs are the same (positive by positive, negative by negative), then the quotient is always positive. If the signs are different (positive by negative, negative by positive), then the quotient is always negative.
When you divide a negative with negative do you get a positive or negative?
always a positive
When a negative number is subtracted from a positive number is the difference always positive?
Yes, a negative number subtracted from a positive number will always be positive. Subtracting a negative number is the same as adding the opposite of the negative number. The opposite of a negative number is always positive. A positive number plus a positive number is always positive.
What is absolute value of the opposite of a nonzero rational number?
The absolute value is always positive.
Does a positive minus a negative equal a positive or negative?
Always positive.
What is positive 6 times negative 2?
-12A negative times a positive is always a negative.A negative times a negative is always positive.
What is isaac newton's 2nd law of motion?
Force is equal to mass multiplied by acceleration. Acceleration is change in velocity either positive or negative. Mass is always positive.
