A 0.20-kg mass is attached to a string and then released from rest, swinging in an arc as a pendulum. At the bottom of it swing, where it is 0.80 m above the floor, the string is cut and the mass becomes a projectile. It stricks the floor 0.56 meters (horizontally) from the point it was cut. From what height was the mass originally released?

A 0.20-kg mass is attached to a string and then released from rest, swinging in an arc as a pendulum. At the bottom of it swing, where it is 0.80 m above the floor, the string is cut and the mass becomes a projectile. It stricks the floor 0.56 meters (horizontally) from the point it was cut. From what height was the mass originally released?

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