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

What is photo-voltaic cell, It having of a Cu plate coated with a thin laye...

It having of a Cu plate coated with a thin layer of cuprous oxide (Cu2O). On this plate is laid a semi transparent thin film of silver. When light fall, the electrons emitt

Newton''s 2nd Law of Motion, A rocket weighs 9800N. What applied force give...

A rocket weighs 9800N. What applied force gives it a vertical acceleration of 4m/sec/sec?

What is the significance of poynting vector, Write down the differential fo...

Write down the differential form of Poynting theorem. What is the significance of Poynting vector?

Why does sun appear flat during sunrise and sunset?, Why does sun appear fl...

Why does sun appear flat during sunrise and sunset? The sun rays have to travel by a larger atmospheric distance. Most of the blue light and shorter wave lengths are removed by

Instantaneous angular acceleration, Concurrent angular acceleration means a...

Concurrent angular acceleration means angular acceleration at a particular dot instant at t = t 1 mathematically it is given as,

Newton laws, can you give me a example of calcuate of laws2

can you give me a example of calcuate of laws2

Evaluate the external-internal pressure difference, There is a maximum dept...

There is a maximum depth at which a diver can breathe through snorkel tube because as the depth increases, so does the pressure difference, tending to collapse the diver's lungs. S

What is about capacitor, What is about Capacitor Capacitor:  Two conduc...

What is about Capacitor Capacitor:  Two conducting surfaces divided by an insulating layer.  It's a device capable of storing energy and charge. Capacitance= Charge on condu

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