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Three small metal balls are thrown at diffrent speeds off the top of a building to...

Three small metal balls are thrown at diffrent speeds off the top of a building to hit the ground 25m below. Sphere A is thrown directly downward at 10m/s while sphere B is dropped from rest. Sphere C is thrown upward at 5m/s. Calculate the time for each sphere to hit the ground below.

Ball Time Unit impact

A=

B=

C=

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