Question

A body starts from rest and accelerates for 5m/s. Calculate the time taken by the body to cover a distance of 1km​

Answer 1

Answer:

We are given 2 givens in the first statement

v0=0 and a=5

And we are trying to find time needed to cover 1km or 1000m.

So we use

x-x0=v0t+1/2at²

Plug in givens

1000=0+2.5t²

solve for t

t²=400

t=20s

Answer 2

 A rational number between √2 and √3:

a) 1.9

b) (√2. √3)/2

c) 1.5

d) 1.8