Momentum impulse physics question, HELP ASAP plz! 1. The problem statement, all variables and given/known data A 4.0-kg block slides along a frictionless surface with a constant speed of 5.0 m/s as shown. Two seconds after it begins sliding, a horizontal, time-dependent force is applied to the mass. The force is removed eight seconds later. The graph shows how the force on the block varies with time. • What is the magnitude of the total impulse of the force acting on the block? • What, approximately, is the speed of the block at t = 10 seconds? 2. Relevant equations p= mv K.E= 1/2*m*v^2 3. The attempt at a solution p= mv = 20kg*m/s K.E= 1/2*m*v^2 = 50 J I was solving this past paper and the answer is 42N but idk how to get tht :s any help wud be appreciated, thanks!