Question: A person drops a vertically-oriented, cylindrical steel bar from a height of 2.20 m (measured from the floor to the bottom of the bar).

A person drops a vertically-oriented, cylindrical steel bar from a height of 2.20 m (measured from the floor

A person drops a vertically-oriented, cylindrical steel bar from a height of 2.20 m (measured from the floor to the bottom of the bar). The bar has length L = 0.98 m, radius R = 0.60 cm, mass m= 1.90 kg, and Young's modulus Y = 2.00 x 10" Pa. The bar hits the floor and bounces back up, maintaining its vertical orientation. Use the gravitational acceleration g = 9.81 m/s2. Assume that the collision with the floor is elastic, and that no rotation occurs. What is the maximum compression Al of the bar? = mm

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