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Distance between number 20 and -11?
31
Can displacement be zero even if distance is non zero?
On a three dimensional basis yes it can. Fir instance, if an object is moving directly towards or away from you the angular displacement can be zero though the distance displacement changes.
what is the Definition of a absolute value?
Absolute value is the distance between a number and zero, so 10 would have an absolute value of ten since it's 10 away from zero, as well as -10
Does a horizontal line on a distance time graph show constant speed?
No. It shows zero speed. Velocity is distance/unit time. The slope of the line shows change in distance / change in time. Since distance never changes as time changes, the change in distance is zero. Alternatively, the slope of a horizontal line is zero. If zero speed is considered "constant", then yes, it does show constant speed but the speed is zero.
What do you call the distance between a number and zero on a number line?
The absolute value is the distance between a number and zero on a number line.
