Of the eight known planets in our solar system,the innermost is Mercury.When compared to the other planets in the system,Mercury has the:
A)greatest centripetal acceleration.
B)greatest period of revolution.
C)smallest angular velocity.
D)smallest tangential velocity.

Question

Quizplus · Accepted Answer

Mercury, being the closest planet to the Sun, has the shortest orbital path and the fastest orbital speed among the planets in our solar system. This results in the greatest centripetal acceleration needed to keep it in orbit around the Sun.

Of the Eight Known Planets in Our Solar System,the Innermost