An object is thrown vertically upward from the ground with a speed of 20 m s⁻¹

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Kinematics · Kinematics

Problem

An object is thrown vertically upward from the ground with a speed of 20 m s⁻¹. Determine the two instants at which the object is 15 m above the ground, stating which instant corresponds to the upward motion and which to the downward motion.

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