(а). With whаt speed must а 60 kg оbject be gоing tо have a linear momentum of 925 kg m/s? (1.5 points) (b). State the law of conservation of linear momentum. (1.5 points) (c). A cart (cart 1) is moving to the right at on a frictionless track. A cart (cart 2) is moving to the left at . The carts collide and stick together. Find the velocity (magnitude and direction) of the combined mass immediately after the collision. (3.0 points)