Impulse-momentum change

Question

Tyrone, South's 76.8-kg halfback, is moving with a speed of 6.37 m/s when he collides mid-air with New Greer Academy's middle linebacker. If Tyrone experiences a resistive force of 888 N over a time period of 1.12 s, then determine his final speed. Enter a positive number

Answer 1

Use impulse equation: FΔt = Δmv

Solving for v_f rearrange the equation to (FΔt + mv_i)/m = v_f

You are given everything you need. Remember that the F < 0 . They say to give his speed rather than his velocity if he should end up going backwards.