## When a rocket is launched what is the direction of the reaction force?

In the same way, a rocket needs to push against something. It is pushing against the gases inside it. As these gases are pushed out in one direction, there is a reaction force that pushes the rocket in the other direction. This reaction force is called thrust.

## Which of Newton’s laws of motion explains how a rocket lifts off?

Newton’s 3rd Law explains how rockets lift off with an action followed by an equal and opposite reaction. As a rocket travels upward from earth, air resistance decreases along with the force of gravity. The rocket’s mass also decreases as it uses up its fuel.

## What causes a rocket to move forward quizlet?

A rocket pushes burning gas down which causes the rocket to launch up. A skateboarder pushes the ground backward which causes the board to move forward.

## When a rocket lifts off the ground the net force is in an upward direction?

When a rocket lifts off the ground, the net force is an upward direction. Is the upward force greater or less than the downward pull of gravity? The upward force is greater since the rocket is lifting off the ground. It has overcome gravity.

## Why does the speed of a satellite not change?

6. The speed of a satellite in circular orbit around a planet does not depend on the mass of the satellite. The mass of the planet is what creates this gravitational field, and it doesn’t cancel out. The mass of the satellite does cancel out because it shows up both in the gravitational force and in the inertia (ma).

## How do you find the speed of a satellite?

The orbital speed can be found using v = SQRT(G*M/R). The R value (radius of orbit) is the earth’s radius plus the height above the earth – in this case, 6.59 x 106 m. Substituting and solving yields a speed of 7780 m/s. 5.

## How long will Hubble last?

The telescope was still operating as of 24 April 2020, its 30th anniversary, and could last until 2030–2040….Hubble Space Telescope.

 Spacecraft properties Website nasa.gov/hubble hubblesite.org spacetelescope.org Mission duration 30 years, 11 months, 1 day (elapsed)