Question

7. The magnitude of the force of gravity on an object, mg", is called the object's​

Answer 1

Answer:

Fg = mg. Then a = g, where g is called the acceleration due to gravity. Near the surface of the earth its magnitude is g = 9.8 m/s2 and its direction is downward. The acceleration due to frictional forces is always in the direction opposite the object's velocity, and differs from object to object.

Answer 2

The magnitude of force of gravity on an object, mg is called weight of the object on earth.

Explanation:

• Weight is a force that acts at all times on all objects near Earth. The Earth pulls on all objects with a force of gravity downward toward the center of the Earth.
• Weight is the downward normal force acting on the object due to gravity.

• Weight is different from mass. The weight of an object will change if the object is brought farther away from Earth, or placed on a different planet, since the force of gravity on the object will change.

• However the mass of the object will remain the same regardless of whether the object is on Earth, in outer space, or on the Moon.

• As the gravitational acceleration, g changes, weight will change.