Question

i cant understand how to derive the formula for this problem. number 49. if anyone can please help me out and show every step i would really appreciate it.

meteorite that was once thought to contain fossils of ancient lite on Mars. Meteorites from Mars are thought to get to Earth by being blasted off the Martian surface when a large object (such as an asteroid or a comet) crashes into the planet. What speed must a rock have to escape Mars? 48. • What is the launch speed of a projectile that rises vertically above the Earth to an altitude equal to one Earth radius before coming to rest momentarily? 49. • A projectile launched vertically from the surface of the Moon rises to an altitude of 425 km. What was the projectile's initial speed? 50... (a) How much gravitational potential energy must a 3130-kg satellite acquire in order to attain a geosynchronous orbit? (b) How much kinetic energy must it gain? Note that because of the rota- tion of the Earth on its axis, the satellite had a velocity of 463 m/s relative to the center of the Earth just before launch. 51. .. Predict/Calculate Halley's Comet Halley's comet, which passes around the Sun every 76 years, has an elliptical orbit. When clos- est to the Sun (nerihelion) it is at a distance of 8.823 X 1010 m and

Answer 1

By conservation of energy RE ground + PE ground = KE Altitude & PE Altitude at Maximum Altitude Valikude = 0 žmur Golem = 0 + Le Chatten me GMM Go to two - Gule Retina) - completos župa Gmbh leon) 22 26Mh R/Rth) 26Mh V RiRth) V=/2x6.67X10 " x 7.347673 1X1022x (425x103) 11737-1X103) (1737.1X163 +425x1039) [Vå 1053 mis