Question

If could watch a rocket that's putting a satellite into orbit around the Earth, you'd see that it doesn't just go straight up. It eventually leans over and flies basically parallel to the Earth's surface when it gets up high. Why does it do this?

a. It needs to stay close to the Earth, so that the satellite doesn't get affected by the gravity of the Moon.
b. It needs to be moving horizontally at a high speed, in order for the satellite to stay in orbit once it's released from the rocket.
c. It has to release the satellite inside the Earth's atmosphere.
d. If it doesn't turn over horizontally, it'll release the satellite in a region where there's no gravity.

Answer 1

the correct answers B

It needs to be moving horizontally at a high speed, in order for the satellite to stay in orbit once it's released from the rocket.

Step-by-step explanation:

In this exercise, let's look for the solution to the problem before reviewing the statements to find out which one is correct.

When the satellite is in orbit it must comply with Newton's law

F = m a

the force of the universal attractive force and the acceleration is centripetal

a = v² / r

we substitute

- G m M /r² = -m v² / r

v² = G M / r

v =
`\sqrt{(GM)/(r) }`

When analyzing this expression, the satellite is in a stable orbit because its centripetal acceleration creates a change in the direction of the velocity in such a way that it remains in an orbit

when reviewing the correct answers B