A ball is thrown upward from the ground with initial velocity vi = 19 m/s and reaches height of h above the ground before falling back down. Take the upward direction to be positive. Refer to the figure. Neglect air resistance. 1) Enter an expression for the height of the ball at a given time, h, the ball reaches in terms of the velocity at the current height vh, the initial velocity vi, and the acceleration a.  2) Enter an expression for the time it takes for the ball to travel from the ground to the a given height, Δt, in terms of the initial velocity vi, the velocity at that height vh, and the acceleration a.

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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 –