Question

describe three equations of motion numeratory and graphycally​

Answer 1

Answer:

Hey mate! ☺☺

The three equations of motion are:

1) v= u+at ( velocity time)

2) s= ut+1/2at square ( position time)

3) 2as= v2 - u2

Explanation:

1) Introduction

➡ Let a body is moving with a velocity'u' then it start accelerating uniformly for time't' . It's velocity becomes 'v' after covering a distance s and acceleration is a.

We know that,

acceleration= slope of v-t graph

a= perpendicular/ base

a= BC/ AC

From the graph BC= v- u, AC= t

a= v-u/ t

at= v-u

v= u+ at

2) s= ut + 1/2 at2

Introduction ( same)

We know that,

distance= area under the graph.

S= 1/2 ( sum of parallel sides) ×height

S= 1/2( OA+BD)× OD

From the graph OA= u, BD= v ,and OD= t

S= 1/2( u+ v) × t

From first equation of motion,v= u+at

S= 1/2(u+u+at)t

= 1/2t( 2u+at)

s= 1/2×2ut + 1/2 at2

s= ut+ 1/2 at2

3) 2as= v2-u2

Introduction (same)

We know that, distance= area under the graph.

s= area of OABD

s= 1/2 (sum of parallel sides) ×height

s= 1/2 (OA+BD) ×OD

From the graph OA= u, BD= v, OD= t

s= 1/2 (u+v)×t

From first equation of motion,v= u+at

v-u= at

v-u/a= t

S= 1/2(u+v) (v-u/a)

2as= (v-u) (v-u)

2as= v2-u2

Hope it helps you

please mark it as brainliest