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

Probebility., what is probebility? and how to solve the sums of this?

what is probebility? and how to solve the sums of this?

.index number, what are the types of index numbers?

what are the types of index numbers?

Calculate the standard error and confidence interval, 1. You have a regiona...

1. You have a regional country-year dataset over 10 years of 150 total observations, within this data you have 25 observations where the ruling party has lost power. (a) Assumin

#test, The AM of 10 numbers are 20 and 30 numbers are 60 then find AM of co...

The AM of 10 numbers are 20 and 30 numbers are 60 then find AM of combined data

Discrete and continous random variables, determine the required value of th...

determine the required value of the missing probality to make the distribution a discrete probability distribution

Homogeneity, Let f (?) be the production function associated with a single-...

Let f (?) be the production function associated with a single-output technology, and let Y be the production set. Show that Y satisfies constant returns to scale if and only if f (

Identification of critical data elements, Check numbers for No Neighboring ...

Check numbers for No Neighboring States with Video Gaming, 2% inflation, 4 Average Bets Numbers for 2018 Average Return -0.082 Net Income -$2,052,859 End of Year Cash $5,0

Time series, what are the importances of time series

what are the importances of time series

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