moto circolare uniforme
• Motion of a body (CORPO) travelling at a
constant speed (VELOCITA’)
in a circular path (TRAIETTORIA)
r is the radius (RAGGIO)
of the path
•
•
The velocity (v) of a body in UCM is variable and
is tangential (TANGENTE) to the path of motion
This is the reason why in UCM we
have an acceleration
•
•
• The Earth (TERRA) orbits the Sun (SOLE) once a
year (ANNO) (3.16x107s) in a nearly circular
orbit of radius 1.50x1011m. With respect to the
Sun, determine:
• a) the angular velocity of the Earth
• b) the speed of the Earth
• c) the magnitude and direction of the Earth’s
centripetal acceleration