Bapat

A 9-kg ball with an initial velocity of (4i + 9j) m/s collides with a wall and rebounds with a velocity of (–3i + 2j) m/s. What is the impulse exerted on the ball by the wall in the Y direction? need help please>?

A 5.6-kg object is acted on by two forces. One of the forces is 11 N acting toward the east. What is the other force if the acceleration of the object is 1.0 m/ s2 toward the east? need help :)

Vector A= 4,7 i + 1.0 j and vector B = 3.0 i + 3,1 j. What is vector = (A- B).A ? need help please

neeed hlppppp please