Question

starting from rest a body travels 420 metres and 12 seconds find velocity after 12 seconds​

Answer 1

Answer:

70 m/s

Explanation:

As body start from rest, so initial velocity will be equal to zero.

now using the equation  S = ut + 1/2 at^2

we get acceleration = 5.833

now use equation v = u + at

we get final velocity 70 m/s