Question

using the formulae " s = ut+1/2at^2", find the value of t , if a= 10m/s^2 , s= 10m and u = 0...
pls answer fast..

Answer 1

Answer:

$t = \sqrt{2} s$

Step-by-step explanation:

a= 10m/s^2 , s= 10m , u = 0

s = ut + 1/2 at²

2s= 2ut + at²

10t² + 0 = 2(10)

10t²= 20

t² = 2

t = +- root(2)

neglecting -ve term coz time can't be in negative value.