Asubstance with a define shape and volume is a

What is the momentum of a 2 kg object moving at 15 meters per second

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

If a simple machine reduces the strength of a force, what must be increased?