If I have a block that weighs 120 lbs is at rest on a smooth horizontal surface A constant force of 15 lbs is

Question

If I have a block that weighs 120 lbs, is at rest on a smooth horizontal surface. A constant force of 15 lbs is

applied at 20 degrees for 14 seconds, how do I find the final velocity (ft/s) at t=10 seconds? I’ve already found that the reaction force is 114.87 N (lb).

Mechanical Engineering