Answer to Question #81510 in Classical Mechanics for Virginia

Question

What is the final velocity of an object that starts at rest, moves a distance of 5.0 X 10 2 m, and has an acceleration rate of 5.0 m/s2?

Answer 1

We use the kinematic formula:
v_f^2-v_i^2=2as.
Thus, the final velocity of an object:
v_f=√(v_i^2+2as)
v_f=√((0)^2+2(5)(500) )=71 m/s