The picture shows the imaginary symbol of China's lunar exploration project. It uses the brushwork of China's calligraphy to outline a bright moon with a pair of footprints on it, symbolizing the moon

The picture shows the imaginary symbol of China's lunar exploration project. It uses the brushwork of China's calligraphy to outline a bright moon with a pair of footprints on it, symbolizing the moon. (1) according to h= 1 2 g t 2, x=v 0 t,

The gravitational acceleration of the lunar surface is g = 2hv02x2.

According to mg= G Mm R 2, the mass of the moon is m = g r 2 g = 2 h v 0 2 r 2 g x 2.

(2) according to mg=m v 2 R

The solution is v = gr = 2hv02r x 2.

A: (1) The mass of the moon is 2Hv02R2GX2.

(2) The speed of the spacecraft orbiting the lunar surface is 2 h V 0 2 r x 2.