Question

a particle is moving with an initial velocity of +112m/s at t=0. The particle has no acceleration until t=3s, after which it has an acceleration of -4.om/s^2. what is the velocity at t=16.0s?

Answer 1

\[\text{Use }V_f=V_i+at \text{ where t is just the period of acceleration:}\]\[V_f=112m/s+(-4m/s^2)(16s-3s)\]