Question

acceleration is 4m/s2 distance travelled in first 3 seconds​

Answer 1

Answer:

initial velocity (u) = 0 m/s

time (t) = 3 seconds

Acceleration (a) = 4m/s2

•: distance (S) = (ut + 1/2 at square )

= 0×3 + 1/2 × 4× 9

= 18 meter .

hence , distance covered in first 3 seconds is 18 m.

Answer 2

In elementary algebra, root rationalisation is a process by which radicals in the denominator of an algebraic fraction are eliminated.

Hope it will be helpful :)