1. The problem statement, all variables and given/known data A force of 5 N acts upon a body of 8 kg in the +x direction. Formulate an expression for the power generated as a function of time. The body is in the beginning at t=0 and x=0 (Sorry I'm translating this question from German, so excuse the mistakes). 2. Relevant equations Work = Force * distance Power = ΔW/Δt Force = mass * acceleration 3. The attempt at a solution Since the force of 5N is acting on the body, by Newton's third law, it is also exerting the same force, so that: F = m * a 5 = 8*a a=5/8 m/s^2 By integrating the acceleration twice I get the distance as a function of time: x(t) = 5/8 t^2 Work = Force * distance = 5 * (5/8)t^2 = (25/8)t^2 P(t) = (25/8)t Was my method correct?