Question

The moon rotates on its axis once every 27.3 days. Calculate through how many degrees it will rotate about its own axis in six hours?

Answer 1

Answer on Question #47314, Physics, Mechanics | Kinematics | Dynamics

The moon rotates on its axis once every 27.3 days. Calculate through how many degrees it will rotate about its own axis in six hours?

Solution:

Since there are 360 degrees in a circle, the Moon moves

$$\frac{360{}^{\circ}}{27.3} = 13.2{}^{\circ}$$

per day (or 24 hours) relative to the its axis.

In six hours it will rotate about

$$\varphi = \frac{13.2{}^{\circ}}{24} \cdot 6 = 3.3{}^{\circ}$$

Answer: $3.3{}^{\circ}$

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