a) A space vehicle is launched vertically upward from the Earth's surface with an initial speed of 8.90 km/s, which is less than the escape speed of 11.2 km/s. What maximum height does it attain? Your response differs from the correct answer by more than 10%. Double check your calculations. m (b) A meteoroid falls toward the Earth. It is essentially at rest with respect to the Earth when it is at a height of 2.35 107 m above the Earth's surface. With what speed does the meteorite (a meteoroid that survives to impact the Earth's surface) strike the Earth? m/s