A body of mass 20 kg accelerates from rest at the rate of 4 m/s². What distance would the body travel in 20 seconds?

Given that:

Mass of body m =20 kg

Acceleration a = 4 m/s²

Time t = 20 seconds

Since, s = ut + ½ at²

As the body starts from rest u = 0 i.e. Initial velocity u = 0

$s=0+\frac{1}{2}\times 4\times {20}^2$

s = 800 metres

Distance is 800 metres