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Constant velocity

Zero acceleration and/or Moving object

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Aylin Schulist

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3y ago

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Will the displacement of a moving object in a given interval of time is zerowould the distance traveled by the object also be zero justify?

Displacement is a vector quantity while distance is a scalar quantity. so in case of displacement, it depends on final position. For example:- If a man walks on a circle, then if he completes one round then his displacement will be zero because the man is at same position as start position. But, his distance travelled will not be zero; it is equal to circumference of the circle.


Why is the slope of a distance velocity squared graph straight and a distance velocity graph is not?

When acceleration is constant, one equation of kinematics is: (final velocity)^2 = 2(acceleration)(displacement) + (initial velocity)^2. When you are graphing this equation with displacement or position of the x-axis and (final velocity)^2 on the y-axis, the equation becomes: y = 2(acceleration)x + (initial velocity)^2. Since acceleration is constant, and there is only one initial velocity (so initial velocity is also constant), the equation becomes: y = constant*x + constant. This looks strangely like the equation of a line: y = mx + b. Therefore, the slope of a velocity squared - distance graph is constant, or there is a straight line. Now, when you graph a velocity - distance graph, the y axis is only velocity, not velocity squared. So if: v^2 = mx + b. Then: v = sqrt(mx + b). Or: y = sqrt(mx + b). This equation is not a straight line. For example, pretend m = 1 and b = 0. So the equation simplifies to: y = sqrt(x). Now, make a table of values and graph: x | y 1 | 1 4 | 2 9 | 3 etc. When you plot these points, the result is clearly NOT a straight line. Hope this helps!


What is the symbol for angular velocity?

The symbol for angular velocity is ω (omega). It represents the rate of change of angular displacement of an object rotating around an axis.


Explain what D-T graph for non-uniform motion looks like?

A D-T graph for non-uniform motion would appear as a curve rather than a straight line. This is because the distance covered by the object is changing at varying rates over time, causing the curve in the graph to represent this non-uniformity. The steeper the curve, the faster the object is accelerating or decelerating.


The amount of work done by two boys who apply 210 N of force in an unsuccessful attempt to move a stalled car is?

The work done by the two boys is zero, since the force they applied did not result in any displacement of the car. Work is defined as force multiplied by displacement, and in this case, since the car did not move, no work was done.

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