Lift a notebook a few inches off a table or other surface. as it moves up, it has kinetic energy. which force opposed the motion of the notebook when you lifted it?

An object has a weight of 500 on earth what is the mass of this object

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.