Questions on simple harmonic motion

Your pendulum clock which advances 1.0 s for every complete oscillation of the pendulum is running perfectly on earth at a site where the magnitude of the acceleration due to gravity is 9.80 m/s2. you send the clock to a location on the moon where the magnitude of the acceleration due to gravity is 1.65 m/s2.

Why should seat belts not be mandatory quick plz

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z