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

Correlation and regression, What is regression analysis ? Discuss the relat...

What is regression analysis ? Discuss the relation between ''correlation coefficient'' and the ''regression coefficients''?

Probability, if you tossed coin 6 times what is probability of getting more...

if you tossed coin 6 times what is probability of getting more than 3 head?

Compute the maximum standard deviation, The specification for a plastic han...

The specification for a plastic handle calls for a length of 6.0 inches ± 0.5 inches (5.5 to 6.5 inches). The process is known to operate at a mean thickness of 6.1 inches.  The mi

Applications of linear regression, Linear regression is widely used in bi...

Linear regression is widely used in biological behavioral and social sciences to describe relationship between variables. It ranks as one of the most important tools used

Trial balance, paid installation charges of machinery rs1100

paid installation charges of machinery rs1100

Determine the cutoff score to indicate a score, What would be the cutoff sc...

What would be the cutoff score to indicate a score that is in the top 15% of the scores on a test with a mean of 100 and a standard deviation of 15?

Assignment , assume that your group is incorporating a business organizatio...

assume that your group is incorporating a business organization. you are required to present a detailed structure, business environment and organizational structure of the entity.

Regarding trial balance, does interest realized come under debit or credit ...

does interest realized come under debit or credit side of trial balance pleases i need answer

How does an amplifier work, Expertsmind.com  brings you unique solution in ...

Expertsmind.com  brings you unique solution in  physics An audio amplifier setup will have a power amplifier and usually a preamplifier.  The preamplifier takes the wea

Accounting for inflation, Accounting for inflation Inflation sales is a ter...

Accounting for inflation Inflation sales is a term reporting a range of sales systems designed to correct problems that comes from traditional cost sales in the use of inflation. I

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