A 250 gram mud ball is thrown at a speed of 12 m/s perpendicular to a brick wall. Upon making contact with the wall the mud ball comes to rest in 0.08 seconds. Find the change in momentum and the average force acting on the ball. What was the average acceleration

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.