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Answered 2010-04-23 17:45:43

The average velocity in a particular direction = distance travelled in that direction / time taken.

Velocity is a vector so the direction is important. If I go from A to B and then return to A my average velocity will be zero. My speed, on the other hand, will not be zero.

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to determine the accerlartion of an object, you must calculate its change in velocity per unit of time

Accelaration= change in velocity/time taken OR Acceleration=final velocity- initial velocity/time taken

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There are certain formulas used in physics to determine the force applied to an object. MV=Ft, mass*velocity = force*time, a formula calculating the momentum of a moving object. So, if you apply a force to an object you can calculate the velocity it gains and observe the mass it has, then you observe the time the force was applied, finally the force applied can be determined by a simple division.

speed = distance/time v2 = u2 + 2as final velocity squared = initial velocity squared + twice the acceleration multiplied by distance

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One formula that is often used is: distance = speed x time

Speed = (distance covered in some time)/(time to cover the distance)

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the formula used to calculate a slope is: m=y2-y1/x2-x1

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A vector is used to represent direction and magnitude of speed. Velocity is the speed of an object and a specification of its direction of motion. Speed describes only how fast an object is moving, whereas velocity gives both how fast and in what direction the object is moving. Therefore a vector can be used to represent a velocity. The term "resultant velocity" implies a change in velocity which can be determined using vector analysis.

Speed, instantaneous or not, is a term used for how fast an object travels. Velocity, instantaneous or not, is a term used for how fast an object travels in a particular direction.

You can use a graph to calculate speed.

Differentiation is used to find the velocity of an object at a particular point.