A pebble is dropped from rest from the top of a cliff. It takes Δt = 3.7 s for it to reach the ground. d)Calculate the magnitude of vf in m/s. e)Express the displacement Δy of an object travelling with acceleration a during a time period Δt that has an initial velocity vi. f) Calculate the magnitude of Δy in meters.

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –