An object is dropped from a bridge.A second object is thrown downwards 1.0 s later.They both reach the water 20 m below at the same instant.What was the initial speed of the second object? Neglect air resistance.
A)4.9 m/s
B)15 m/s
C)9.9 m/s
D)20 m/s
E)21 m/s

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The Answer of An object is dropped from a bridge.A second object is thrown downwards 1.0 s later.They both reach the water 20 m below at the same instant.What was the initial speed of the second object? Neglect air resistance.
A)4.9 m/s
B)15 m/s
C)9.9 m/s
D)20 m/s
E)21 m/s

An Object Is Dropped from a Bridge