General Science • PhysicsEasy
What is the minimum escape velocity required for an object to break free from the gravitational pull of the Earth from its surface?
A. 11.2 km/s✓ Correct Answer
B. 7.9 km/s
C. 3.0 x 10^8 m/s
D. 2.4 km/s
💡 Solution & Explanation
The escape velocity required for any object to overcome the gravitational pull of the Earth from its surface is approximately eleven point two kilometers per second. Orbital velocity for low Earth orbit is roughly seven point nine kilometers per second, while the speed of light represents an unrelated physical constant. Lower velocity values mentioned in distractors would cause projectiles to fall back to the ground under terrestrial gravity. Escape velocity depends directly on the mass and radius of the planet being exited.
More General Science Physics questions
- Consider a closed thermodynamic system undergoing a cyclic process where it absorbs two hundred joules of…
- A thermodynamic system undergoes a cyclic process consisting of two isobaric and two isothermal…
- Which type of wave requires no material medium for propagation and can travel through a vacuum at the speed…
- What is the name of the constant of proportionality in Coulomb's law that describes the electrostatic force…
- Which instrument is specifically designed to measure low-intensity radiant energy or heat radiation based on…