Horizontal Kinematics - Speed question?

Question

The initial speed of a body is 6.79 m/s.

What is its speed after 2.38 s if it accelerates

uniformly at 2.83 m/s2? Answer in units of

m/s.

Answer 1

you will use the equation

acceleration= (final velocity- initial velocity)/time

substitute the values

2.83 m/s2 = (final velocity- 6.79 m/s) / 2.38 s

2.83 m/s2 * 2.38 s = final velocity- 6.79 m/s

6.7354 m/s = final velocity - 6.79 m/s

6.7354 m/s + 6.79 m/s = final velocity

13.5254 m/s = final velocity

the answer is 13.5254 m/s.