Average Speed in Various Cases, Physics, Basic Statistics

Assignment Help:
Define Average Speed in Various Cases

(a) Particles covering different distances in different times say a particle covers s1 distance in time t1 ,s2 in time t2, s3 in time t3 and so on then average speed is

v = s1 + s2 + s3+……. /t1 + t2+ t3……. = s1 + s2+ s3+……/s1/v1 + s2/v2 + s3/v3+……

Special case

If s1 = s2 = s

v = 2s/s (1/v1 + 1/v2) = 2v1 v2/v1 + v2 (harmonic mean)

(b) Bodies moving with different speeds in different intervals of time a body moves with velocity v1 on time t1, v2 in time t2, v3 in time t3 and so on then

v = v1 t1 + v2 t2 + v3 t3 +….. /t1 + t2 + t3 +…..

Special case

if t1 = t2 = t3…..t (say) then

v = v1 + v2 + v3+….vn (arithmetic mean)

Units of speed or velocity me-1 in SI, cms-1 in CGS and fts-1 on FPS. Dimensional formula (LT-11)

Acceleration the time rate of change of velocity is called acceleration.

A = dv/dt

(a) Uniform acceleration a body is said to moves with uniform acceleration if acceleration remains constant throughout the motion and direction of motion does no change with time, that is,

(i) A = dv/dt = constant

(ii) Direction of motion remains unchanged.

(b) Variable or non-uniform acceleration if the acceleration is not constant or if the acceleration is constant but direction of motion varies or both vary. The particle is said to posses variable acceleration

Unit of acceleration ms-2 in SI system, cms-2 in Cos system fts-2 FPS system

Dimensional formula of acceleration [LT-2]

Related Discussions:- Average Speed in Various Cases, Physics

Hypothesis testing, a clinical psychologist claims that on average, at leas...

a clinical psychologist claims that on average, at least twenty five clients visit her per week. for a random sample of 8 weeks, the following numbers of clients were recorded; 25

Project, impact of cost accounting technique in organizational performance

impact of cost accounting technique in organizational performance

Time series, mathametical examples of components

mathametical examples of components

Normal distribution, In a mathematics examination the average grade was 82 ...

In a mathematics examination the average grade was 82 and the standard deviation was 5. all students with grade from 88 to 94 received grade of B. if the grade are approximately no

Calculate a forecast using exponential smoothing, The Midwestern Manufactur...

The Midwestern Manufacturing Company (MMC) is a large manufacturer of electrical generators.  The firm has experienced demand for their generators as shown below: Year  Demand

Responsiblity accounting significance, What is significance of Responsiblit...

What is significance of Responsiblity accounting in divisional performance statement measurement?

What is AXlOM in accounting?, AXIOM, usually, it is a saying that is common...

AXIOM, usually, it is a saying that is commonly recognized on its own merits; in sense, it is an idea that is not vulnerable of confirmation or disproof; its reality is believed to

Women tend to work out together, You notice at the gym that it appears more...

You notice at the gym that it appears more women tend to work out together, while more men tend to work out alone.  To show whether this difference is significant, you collect data

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