1. Homework Statement
A person with mass m1 = 61 kg stands at the left end of a uniform beam with mass m2 = 104 kg and a length L = 2.7 m. Another person with mass m3 = 68 kg stands on the far right end of the beam and holds a medicine ball with mass m4 = 8 kg (assume that the medicine ball is...
So since you don't escape the Earth's gravity, I just used mgh for PE instead of the universal gravitation and was able to get the correct answer. Thanks for pointing that out.
Homework Statement
You plan to take a trip to the moon. Since you do not have a traditional spaceship with rockets, you will need to leave the Earth with enough speed to make it to the moon.
On your first attempt you leave the surface of the Earth at v = 5534 m/s. How far from the center...