Question

hi can anyone derive the formula for displacement in nth second???

Answer 1

we will solve it together

Answer 2

tell me the displacement in nth second

Answer 3

and n-1th second

Answer 4

sn=utn+1/2a(tn)^2

Answer 5

right :) then

Answer 6

i know the formulae

Answer 7

he wants to derive it problemsolver

Answer 8

s(n-1)-1=u(n-1)+1/2a((n-1)^2)

Answer 9

kk

Answer 10

s(n-1)=u(n-1)+1/2a((n-1)^2)

Answer 11

oh ok in the first formula u wrote t make it n
now you simplify 2nd and subtract both the displacements to get your answer\\

Answer 12

should i open all brackets in 2nd equation???

Answer 13

yes yes
bring it in the simplest form and then subtract

Answer 14

wow got it sn=u+1/2a(2n-1)

Answer 15

yes correct :)

Answer 16

you get it?

Answer 17

ya one more doubt

Answer 18

is the formula for both average velocity and average speed same???

Answer 19

no they are different.. a modulus is what is different