Question

What additional information does Hannah need in order to calculate the tangential speed of the orbiting object?

the mass of the orbiting object
the distance of the orbiting object to Earth
the orbital period of Earth
the radius of Earth

Answer 1

Answer: The answer is B

Step-by-step explanation:

Answer 2

Answer: The distance of the orbiting object to Earth

Explanation: Gravitational force is equal to the cenrtipetal force and because of that:

`G Mm/r^(2)   = m * v^(2) / r` and for the tangential speed of an orbiting object:
`v=\sqrt{(GM)/(r)` in which we can see that there are three quantities G, M and r where r is referring to the distance of the orbiting object to Earth.