Question

An object moves along a straight line with acceleration of 2 metre per second square. Its initial speed is 10m/s what will be its speed after 2 seconds later

Answer 1

v=u+at
Here u=10m/s
a=2m/s^2
t=2sec

v=10+2×2
=10+4
=14m/s

Answer 2

Given:

acceleration (a)= 2m/s²

initial speed (u) = 10m/s

time (t) = 2sec

To Find:

final speed (v) after 2 sec

Solution:

We Know,

1st Equation of Motion is

v = u + at

v = 10 + 2 * 2

v = 10 + 4

v = 14m/s.

So, the final velocity of the body after 2sec is 14m/s.