Author Question: An object is falling on Earth close to its surface. Earth exerts a force of W magnitude on the ... (Read 76 times)

tatyanajohnson · **on:** Jul 29, 2018

An object is falling on Earth close to its surface. Earth exerts a force of W magnitude on the object. The magnitude of the force that the object exerts on Earth is

A) greater than W.
B) less than W.
C) equal to W.
D) zero.
E) cannot be determined without knowing the relative masses of the object and the earth.

Question 2

Suppose that the gravitational force by Earth on the moon suddenly shut off. How would the moon then move?

A) It would go into a larger circular orbit.
B) It would move straight ahead in a straight line, at constant speed.
C) It would move directly outward, away from Earth.
D) It would slow down and stop.
E) It would move directly inward, toward Earth.