A car starts from rest its acceleration is 2m.s-2 in a straight line. What is it displacement after 10 seconds?

(a/2) t^2

a = 2 m/s^2
t = 10 s
Turn the crank.

1,5m.s-2

Wrong number; wrong dimensions.

1*10^2 = 100 m

What exactly are you doing?

To find the displacement of the car after 10 seconds, we can use the equation of motion, which relates acceleration (a), time (t), initial velocity (u), and displacement (s).

The equation is:
s = ut + 0.5 * a * t^2

Given that the car starts from rest, the initial velocity (u) is 0 m/s.

Plugging the values into the equation:
s = 0 * 10 + 0.5 * 2 * 10^2

Simplifying the equation:
s = 0 + 0.5 * 2 * 100
s = 0 + 1 * 100
s = 100 meters

Therefore, the displacement of the car after 10 seconds is 100 meters.