If the Moon takes 27.3 days to complete one 360° orbit around the Earth, how many degrees per day does the Moon mover across Earth's sky?

Moon moves across the Earth's sky per day = 13.2°

Explanation:

Given:

Moon take to complete one orbit around the earth = 27.3 days

earth orbit = 360°

We need to find the degrees per day does the Moon move across Earth's sky.

Solution:

Moon takes 27.3 days to complete one 360° orbit around the Earth.

So, the degrees per day is equal to 360° divided by moon take to complete one orbit around the earth.

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Degree per day = 13.2°

Therefore, moon moves 13.2° across the Earth's sky each day.

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft