The Moon has a mass 7.35 × 1022 kg of and a radius of 1740 km. Air resistance can be neglected on the Moon. G = 6.67 × 10-11 m³ kg-1 s-2 is the universal gravitational constant. (a) If a ball is launched upwards from the surface of the moon with an initial speed of 1.15 km/s, what height maximum height above the surface of the moon will it reach? Give your answer in kilometers. (b) What is the escape speed of the moon? Give your answer in km/s.

The Moon has a mass 7.35 × 1022 kg of and a radius of 1740 km. Air resistance can be neglected on the Moon. G = 6.67 × 10-11 m³ kg-1 s-2 is the universal gravitational constant. (a) If a ball is launched upwards from the surface of the moon with an initial speed of 1.15 km/s, what height maximum height above the surface of the moon will it reach? Give your answer in kilometers. (b) What is the escape speed of the moon? Give your answer in km/s.