Question

1.4.1 Gravitational Force
The gravitational force is the force of mutual
attraction between any two objects by virtue of
their masses. It is a universal force. Every object
experiences this force due to every other object
in the universe. All objects on the earth, for
example, experience the force of gravity due to
the earth. In particular, gravity governs the
motion of the moon and artificial satellites around
the earth, motion of the earth and planets
around the sun, and, of course, the motion of
bodies falling to the earth. It plays a key role in
the large-scale phenomena of the universe, such
as formation and evolution of stars, galaxies and
galactic clusters.​

Answer 1

Answer:

An acceleration can cause speed to increase, decrease, and even stay the same! Acceleration tells you the rate at which the velocity is changing. ... The acceleration can change the magnitude and/or the direction of the velocity. Speed is only the magnitude of the velocity.