Consider the following statements. Two are true. Which one is false? The frequency of a vibrating object refers to the average speed with which the object moves over the course of a vibration.
The frequency of a vibrating object refers to the number of complete cycles of vibrations made per unit of time.
The frequency of a vibrating object refers to how often a vibrating object repeats its vibration.

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s

Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.

How to know which equation of motion to use where?explain