An official major league baseball has a mass of 0.14 kg. A pitcher throws a 40 m/s fastball which is hit by the batter straight back up the middle at a speed of 46 m/s. What is the momentum of the ball after the collision with the bat?

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)