What is the final velocity of a body that accelerates at "150 m/s"^2" for "2 s" from a velocity of "75 m/s"?

1 Answer
Aug 31, 2016

The velocity after two seconds will be 375 m/s.

Explanation:

From your question, we can identify three variables: acceleration, a; time, t; and initial velocity, v_i. The final velocity, v_f, is what you want to determine.

The equation to use is v_f=v_i+at.

We need to identify what we know and what we don't know.

Known
a="150 m/s"^2"
t="2 s"
v_i="75 m/s"

Unknown
v_f

Plug the known values into the equation and solve.

v_f="75 m/s"+"150 m/s"^cancel2*"2 cancels

v_f="75 m/s"+"300 m/s"

v_f="375 m/s"