Question

a bus moving at 20m/s accelerates at 2 m s-2 for 30 seconds.how far it travells after this time.​

Answer 1

u = 20 m/s

t = 30 s

a = 2m/s^2

s = ut + 1/2at^2

s = 20*30+1/2*2*30*30

s = 600+30*30

s = 600+900

s = 1500 m = Distance

or 1.5 km

$....$

Answer 2

Initial velocity, u = 20 m/s

time taken, t = 30 s

Acceleration, a = 2 m/s²

We know,

h = ut + 1/2 at²

===> 20×30 + 1/2 × 2 × 30 × 30

===> 600 + 900

===> 1500 m

Hence, Bus will travel 1500 m or 1.5 km