A sprinter increases the speed from 0 meters per second to 9 meters per second in 2 seconds. what is the acceleration

The acceleration is

Step-by-step explanation:

Use the equation of motion,

where u=0m/s is the initial speed, v=9m/s is the final speed and t=2 seconds is the time.

We substitute the values into the equation and solve for the acceleration, a

This means that;

Divide both sides by 2 to get:

c

step-by-step explanation:

at least i think its

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .