A lorry collides heads on with a car as seen below. After the elastic collision, the car is traveling 2.5 m/s to the right. What is the final velocity of the lorry?

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little

Macy always thought there were only a few hair colors blonde brown and black however when she actually began looking around she saw varying shades of these hair color what is a possible reason for so many different hair colors