Projectile Launched from the moon

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    Moon Projectile
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SUMMARY

A projectile launched vertically from the Moon's surface at an initial speed of 1380 m/s will reach an altitude where its speed is two-thirds of its initial value, specifically at 920 m/s. The primary difference between the Earth and the Moon in this context is the gravitational acceleration, which is approximately 1.625 m/s² on the Moon compared to 9.81 m/s² on Earth. This lower gravity affects the projectile's trajectory and speed reduction over altitude.

PREREQUISITES
  • Understanding of gravitational acceleration and its effects on projectile motion.
  • Familiarity with basic kinematic equations for vertical motion.
  • Knowledge of the concept of escape velocity.
  • Ability to perform calculations involving initial velocity and final velocity in physics.
NEXT STEPS
  • Study the kinematic equations for projectile motion in varying gravitational fields.
  • Learn about the differences in gravitational forces on different celestial bodies.
  • Explore the concept of escape velocity and its implications for launching objects from the Moon.
  • Investigate the effects of altitude on projectile speed and trajectory in low-gravity environments.
USEFUL FOR

Students studying physics, educators teaching projectile motion, and anyone interested in the dynamics of launching objects from celestial bodies like the Moon.

Brad2007
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Question: A projectile is launched vertically from the surface of the Moon with an initial speed of 1380 m/s. At what altitude is the projectile's speed two-thirds its initial value?

I don't really know where to start there is so little information. We went over escape velocity in class, but I don't think this is it.
 
Physics news on Phys.org
Could you solve this problem if it were on the earth?

If so what is the difference between the Earth and moon?
 

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