The position -time graphs for two childen A and B returing from school O to their home P and Q respectively are who live closer to the school
who starts first from the school
who walk faster
A and B reach home at same/different time.
who ovetakes whom on the road

v = 108 m/s.

Explanation:

Given that,

The position of a particle moving on a straight line is given by :

We need to find the instantaneous velocity at  t=5s.

Velocity,

So,

Instantaneous velocity at t = 5 s will be :

v = 18+18t

v = 18+18(5)

= 18 + 90

= 108 m/s

So, the instantaneous veloctiy at  t=5s is 108 m/s.

answer: decibel

explanation:

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered