An 18.00 g rifle bullet travelling 250 ms buries itself in, Ask an Expert

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Q. A 42-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 18-m. What force does the seat exert on the child at the highest point of the ride?

Q. An 18.00 g rifle bullet travelling 250 m/s buries itself in a 3.6 kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's displacement.

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