Velocity and acceleration, Physics

Assignment Help:

Velocity:

It is common to find people confusing the terms velocity and speed when describing how fast an object is moving.  The difference is that speed is a scalar quantity, whilst the term velocity refers to both speed and direction of an object.  The full definition of velocity is that it is the rate at which its position changes, over time, and the direction of the change.

The simple diagram below shows how an aircraft, which flies the irregular path from 'A' to 'B' in an hour, (a speed of 350 mph), has an actual velocity of 200 mph in an East-Northeast direction.

1062_velocity and acceration.png

Acceleration:

This term describes the rate at which velocity changes.  If an object increases in speed, it has positive acceleration; if it decreases in speed, it has negative acceleration.  A reference to Newton's Second law of Motion will explain the principles of acceleration.  Acceleration can be in a straight line, which is referred to a linear acceleration and it can apply to rotating objects whose speed of rotation is increasing, (or decreasing), when it is called angular acceleration.

 


Related Discussions:- Velocity and acceleration

Breakdown voltage, It is a parameter of an insulator that defInes the maxim...

It is a parameter of an insulator that defInes the maximum voltage difference that can be applied across the material before the insulator collapse and conducts.

Explain range of projectile, RANGE OF PROJECTILE:  "It is the horizonta...

RANGE OF PROJECTILE:  "It is the horizontal distance covered by the projectile from the point of projection to the point where it returns to its level of projection".

Define elastic limit, Elastic limit is the upper limit of deforming force u...

Elastic limit is the upper limit of deforming force up to which, if deforming force is swap, the object regains its real form totally and after that limit, if deforming force is en

Impact of electron energy, Plot the Bremsstrahlung emitted (intensity vs en...

Plot the Bremsstrahlung emitted (intensity vs energy) from a copper target for (i) both 15 keV and 30 keV electrons, (ii) for 15 keV electrons at both 10 and 50 mA current and (iii

Light dependent resistor, These resistors change their resistance with vari...

These resistors change their resistance with variations of incident light energy. MANUFACTURING: Cadmium sulphide is obtained in a highly pure state. By adding special m

Suppose the sides of a closed polygam represent vector arran, Suppose the s...

Suppose the sides of a closed polygam represent vector arrangend head to tail rule , what is sum of these vectors ?

Adding 3 vectors, Adding 3 Vectors A simple demonstration of adding 3 v...

Adding 3 Vectors A simple demonstration of adding 3 vectors graphically. Also elaborates in which vector addition is relative.

Define the ray diagrams for lenses, Define the Ray Diagrams for Lenses Wh...

Define the Ray Diagrams for Lenses When drawing ray diagrams for thin lenses, we can assume that the lens is infinitely thin. Instead of considering refractions at each surface o

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd